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Finding the Fourth Proportional to 67,862.93, 101,745.18 and 45,621.14

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Solution

The fourth proportional to 67,862.93, 101,745.18 and 45,621.14 is: 68,398.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,862.93 : 101,745.18 = 45,621.14 : x
  2. Step 2: Convert to fraction form
    67,862.93/101,745.18 = 45,621.14/x
  3. Step 3: Cross multiply
    67,862.93x = 101,745.18 × 45,621.14
  4. Step 4: Simplify right side
    67,862.93x = 4,641,730,592.38
  5. Step 5: Solve for x
    x = 4,641,730,592.38/67,862.93
  6. Step 6: Final answer
    x = 68,398.62

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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.