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Finding the Fourth Proportional to 113,651.10, 156,832.20 and 63,350.10

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Solution

The fourth proportional to 113,651.10, 156,832.20 and 63,350.10 is: 87,419.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,651.10 : 156,832.20 = 63,350.10 : x
  2. Step 2: Convert to fraction form
    113,651.10/156,832.20 = 63,350.10/x
  3. Step 3: Cross multiply
    113,651.10x = 156,832.20 × 63,350.10
  4. Step 4: Simplify right side
    113,651.10x = 9,935,335,553.22
  5. Step 5: Solve for x
    x = 9,935,335,553.22/113,651.10
  6. Step 6: Final answer
    x = 87,419.62

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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.