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Finding the Fourth Proportional to 159,081.30, 238,616.46 and 40,753.80

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Solution

The fourth proportional to 159,081.30, 238,616.46 and 40,753.80 is: 61,129.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,081.30 : 238,616.46 = 40,753.80 : x
  2. Step 2: Convert to fraction form
    159,081.30/238,616.46 = 40,753.80/x
  3. Step 3: Cross multiply
    159,081.30x = 238,616.46 × 40,753.80
  4. Step 4: Simplify right side
    159,081.30x = 9,724,527,487.55
  5. Step 5: Solve for x
    x = 9,724,527,487.55/159,081.30
  6. Step 6: Final answer
    x = 61,129.29

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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.