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Finding the Fourth Proportional to 159,618.13, 239,265.60 and 103,493.77

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Solution

The fourth proportional to 159,618.13, 239,265.60 and 103,493.77 is: 155,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,618.13 : 239,265.60 = 103,493.77 : x
  2. Step 2: Convert to fraction form
    159,618.13/239,265.60 = 103,493.77/x
  3. Step 3: Cross multiply
    159,618.13x = 239,265.60 × 103,493.77
  4. Step 4: Simplify right side
    159,618.13x = 24,762,498,975.31
  5. Step 5: Solve for x
    x = 24,762,498,975.31/159,618.13
  6. Step 6: Final answer
    x = 155,135.88

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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.