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Finding the Fourth Proportional to 67,042.92, 92,516.24 and 40,200.24

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Solution

The fourth proportional to 67,042.92, 92,516.24 and 40,200.24 is: 55,474.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,042.92 : 92,516.24 = 40,200.24 : x
  2. Step 2: Convert to fraction form
    67,042.92/92,516.24 = 40,200.24/x
  3. Step 3: Cross multiply
    67,042.92x = 92,516.24 × 40,200.24
  4. Step 4: Simplify right side
    67,042.92x = 3,719,175,051.90
  5. Step 5: Solve for x
    x = 3,719,175,051.90/67,042.92
  6. Step 6: Final answer
    x = 55,474.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.