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Finding the Fourth Proportional to 88,839.70, 133,040.85 and 42,037.90

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Solution

The fourth proportional to 88,839.70, 133,040.85 and 42,037.90 is: 62,953.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,839.70 : 133,040.85 = 42,037.90 : x
  2. Step 2: Convert to fraction form
    88,839.70/133,040.85 = 42,037.90/x
  3. Step 3: Cross multiply
    88,839.70x = 133,040.85 × 42,037.90
  4. Step 4: Simplify right side
    88,839.70x = 5,592,757,948.22
  5. Step 5: Solve for x
    x = 5,592,757,948.22/88,839.70
  6. Step 6: Final answer
    x = 62,953.36

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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.