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Finding the Fourth Proportional to 159,463.13, 239,188.71 and 39,520.48

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Solution

The fourth proportional to 159,463.13, 239,188.71 and 39,520.48 is: 59,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,463.13 : 239,188.71 = 39,520.48 : x
  2. Step 2: Convert to fraction form
    159,463.13/239,188.71 = 39,520.48/x
  3. Step 3: Cross multiply
    159,463.13x = 239,188.71 × 39,520.48
  4. Step 4: Simplify right side
    159,463.13x = 9,452,851,731.53
  5. Step 5: Solve for x
    x = 9,452,851,731.53/159,463.13
  6. Step 6: Final answer
    x = 59,279.23

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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.