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Finding the Fourth Proportional to 159,600.60, 239,400.90 and 115,641.90

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Solution

The fourth proportional to 159,600.60, 239,400.90 and 115,641.90 is: 173,462.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,600.60 : 239,400.90 = 115,641.90 : x
  2. Step 2: Convert to fraction form
    159,600.60/239,400.90 = 115,641.90/x
  3. Step 3: Cross multiply
    159,600.60x = 239,400.90 × 115,641.90
  4. Step 4: Simplify right side
    159,600.60x = 27,684,774,937.71
  5. Step 5: Solve for x
    x = 27,684,774,937.71/159,600.60
  6. Step 6: Final answer
    x = 173,462.85

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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.