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Finding the Fourth Proportional to 88,972.20, 133,344.90 and 36,322.20

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Solution

The fourth proportional to 88,972.20, 133,344.90 and 36,322.20 is: 54,437.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,972.20 : 133,344.90 = 36,322.20 : x
  2. Step 2: Convert to fraction form
    88,972.20/133,344.90 = 36,322.20/x
  3. Step 3: Cross multiply
    88,972.20x = 133,344.90 × 36,322.20
  4. Step 4: Simplify right side
    88,972.20x = 4,843,380,126.78
  5. Step 5: Solve for x
    x = 4,843,380,126.78/88,972.20
  6. Step 6: Final answer
    x = 54,437.01

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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.