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Finding the Fourth Proportional to 88,788.80, 133,037.40 and 73,917.20

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Solution

The fourth proportional to 88,788.80, 133,037.40 and 73,917.20 is: 110,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,788.80 : 133,037.40 = 73,917.20 : x
  2. Step 2: Convert to fraction form
    88,788.80/133,037.40 = 73,917.20/x
  3. Step 3: Cross multiply
    88,788.80x = 133,037.40 × 73,917.20
  4. Step 4: Simplify right side
    88,788.80x = 9,833,752,103.28
  5. Step 5: Solve for x
    x = 9,833,752,103.28/88,788.80
  6. Step 6: Final answer
    x = 110,754.42

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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.