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Finding the Fourth Proportional to 425,308.92, 637,942.18 and 159,049.86

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Solution

The fourth proportional to 425,308.92, 637,942.18 and 159,049.86 is: 238,566.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,308.92 : 637,942.18 = 159,049.86 : x
  2. Step 2: Convert to fraction form
    425,308.92/637,942.18 = 159,049.86/x
  3. Step 3: Cross multiply
    425,308.92x = 637,942.18 × 159,049.86
  4. Step 4: Simplify right side
    425,308.92x = 101,464,614,417.10
  5. Step 5: Solve for x
    x = 101,464,614,417.10/425,308.92
  6. Step 6: Final answer
    x = 238,566.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.