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Finding the Fourth Proportional to 101,778.76, 152,691.18 and 39,467.08

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Solution

The fourth proportional to 101,778.76, 152,691.18 and 39,467.08 is: 59,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,778.76 : 152,691.18 = 39,467.08 : x
  2. Step 2: Convert to fraction form
    101,778.76/152,691.18 = 39,467.08/x
  3. Step 3: Cross multiply
    101,778.76x = 152,691.18 × 39,467.08
  4. Step 4: Simplify right side
    101,778.76x = 6,026,275,016.35
  5. Step 5: Solve for x
    x = 6,026,275,016.35/101,778.76
  6. Step 6: Final answer
    x = 59,209.55

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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.