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Finding the Fourth Proportional to 112,164.75, 154,798.29 and 61,863.75

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Solution

The fourth proportional to 112,164.75, 154,798.29 and 61,863.75 is: 85,378.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,164.75 : 154,798.29 = 61,863.75 : x
  2. Step 2: Convert to fraction form
    112,164.75/154,798.29 = 61,863.75/x
  3. Step 3: Cross multiply
    112,164.75x = 154,798.29 × 61,863.75
  4. Step 4: Simplify right side
    112,164.75x = 9,576,402,712.99
  5. Step 5: Solve for x
    x = 9,576,402,712.99/112,164.75
  6. Step 6: Final answer
    x = 85,378.01

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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.