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Finding the Fourth Proportional to 161,250.92, 241,793.44 and 72,428.20

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Solution

The fourth proportional to 161,250.92, 241,793.44 and 72,428.20 is: 108,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,250.92 : 241,793.44 = 72,428.20 : x
  2. Step 2: Convert to fraction form
    161,250.92/241,793.44 = 72,428.20/x
  3. Step 3: Cross multiply
    161,250.92x = 241,793.44 × 72,428.20
  4. Step 4: Simplify right side
    161,250.92x = 17,512,663,631.01
  5. Step 5: Solve for x
    x = 17,512,663,631.01/161,250.92
  6. Step 6: Final answer
    x = 108,605.05

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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.