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Finding the Fourth Proportional to 91,791.10, 137,511.12 and 62,063.02

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Solution

The fourth proportional to 91,791.10, 137,511.12 and 62,063.02 is: 92,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,791.10 : 137,511.12 = 62,063.02 : x
  2. Step 2: Convert to fraction form
    91,791.10/137,511.12 = 62,063.02/x
  3. Step 3: Cross multiply
    91,791.10x = 137,511.12 × 62,063.02
  4. Step 4: Simplify right side
    91,791.10x = 8,534,355,390.78
  5. Step 5: Solve for x
    x = 8,534,355,390.78/91,791.10
  6. Step 6: Final answer
    x = 92,975.85

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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.