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Finding the Fourth Proportional to 159,411.68, 239,149.05 and 45,560.51

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Solution

The fourth proportional to 159,411.68, 239,149.05 and 45,560.51 is: 68,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,411.68 : 239,149.05 = 45,560.51 : x
  2. Step 2: Convert to fraction form
    159,411.68/239,149.05 = 45,560.51/x
  3. Step 3: Cross multiply
    159,411.68x = 239,149.05 × 45,560.51
  4. Step 4: Simplify right side
    159,411.68x = 10,895,752,684.02
  5. Step 5: Solve for x
    x = 10,895,752,684.02/159,411.68
  6. Step 6: Final answer
    x = 68,349.78

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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.