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Finding the Fourth Proportional to 188,506.13, 260,131.86 and 103,622.58

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Solution

The fourth proportional to 188,506.13, 260,131.86 and 103,622.58 is: 142,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,506.13 : 260,131.86 = 103,622.58 : x
  2. Step 2: Convert to fraction form
    188,506.13/260,131.86 = 103,622.58/x
  3. Step 3: Cross multiply
    188,506.13x = 260,131.86 × 103,622.58
  4. Step 4: Simplify right side
    188,506.13x = 26,955,534,473.40
  5. Step 5: Solve for x
    x = 26,955,534,473.40/188,506.13
  6. Step 6: Final answer
    x = 142,995.54

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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.