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Finding the Fourth Proportional to 356,402.20, 534,747.30 and 156,760.60

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Solution

The fourth proportional to 356,402.20, 534,747.30 and 156,760.60 is: 235,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,402.20 : 534,747.30 = 156,760.60 : x
  2. Step 2: Convert to fraction form
    356,402.20/534,747.30 = 156,760.60/x
  3. Step 3: Cross multiply
    356,402.20x = 534,747.30 × 156,760.60
  4. Step 4: Simplify right side
    356,402.20x = 83,827,307,596.38
  5. Step 5: Solve for x
    x = 83,827,307,596.38/356,402.20
  6. Step 6: Final answer
    x = 235,204.24

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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.