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Finding the Fourth Proportional to 156,151.52, 234,233.72 and 45,343.52

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Solution

The fourth proportional to 156,151.52, 234,233.72 and 45,343.52 is: 68,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,151.52 : 234,233.72 = 45,343.52 : x
  2. Step 2: Convert to fraction form
    156,151.52/234,233.72 = 45,343.52/x
  3. Step 3: Cross multiply
    156,151.52x = 234,233.72 × 45,343.52
  4. Step 4: Simplify right side
    156,151.52x = 10,620,981,367.49
  5. Step 5: Solve for x
    x = 10,620,981,367.49/156,151.52
  6. Step 6: Final answer
    x = 68,017.15

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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.