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Finding the Fourth Proportional to 113,487.75, 156,617.96 and 63,186.75

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Solution

The fourth proportional to 113,487.75, 156,617.96 and 63,186.75 is: 87,200.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,487.75 : 156,617.96 = 63,186.75 : x
  2. Step 2: Convert to fraction form
    113,487.75/156,617.96 = 63,186.75/x
  3. Step 3: Cross multiply
    113,487.75x = 156,617.96 × 63,186.75
  4. Step 4: Simplify right side
    113,487.75x = 9,896,179,568.10
  5. Step 5: Solve for x
    x = 9,896,179,568.10/113,487.75
  6. Step 6: Final answer
    x = 87,200.42

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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.