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Finding the Fourth Proportional to 112,358.19, 155,055.11 and 62,057.19

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Solution

The fourth proportional to 112,358.19, 155,055.11 and 62,057.19 is: 85,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,358.19 : 155,055.11 = 62,057.19 : x
  2. Step 2: Convert to fraction form
    112,358.19/155,055.11 = 62,057.19/x
  3. Step 3: Cross multiply
    112,358.19x = 155,055.11 × 62,057.19
  4. Step 4: Simplify right side
    112,358.19x = 9,622,284,111.45
  5. Step 5: Solve for x
    x = 9,622,284,111.45/112,358.19
  6. Step 6: Final answer
    x = 85,639.37

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Half scale
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Double scale
Find fourth proportional to 112,359.19, 155,056.49 and 62,058.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.