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Finding the Fourth Proportional to 73,562.55, 110,344.86 and 20,972.04

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Solution

The fourth proportional to 73,562.55, 110,344.86 and 20,972.04 is: 31,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,562.55 : 110,344.86 = 20,972.04 : x
  2. Step 2: Convert to fraction form
    73,562.55/110,344.86 = 20,972.04/x
  3. Step 3: Cross multiply
    73,562.55x = 110,344.86 × 20,972.04
  4. Step 4: Simplify right side
    73,562.55x = 2,314,156,655.28
  5. Step 5: Solve for x
    x = 2,314,156,655.28/73,562.55
  6. Step 6: Final answer
    x = 31,458.35

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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.