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Finding the Fourth Proportional to 67,734.92, 93,474.82 and 40,872.24

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Solution

The fourth proportional to 67,734.92, 93,474.82 and 40,872.24 is: 56,404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,734.92 : 93,474.82 = 40,872.24 : x
  2. Step 2: Convert to fraction form
    67,734.92/93,474.82 = 40,872.24/x
  3. Step 3: Cross multiply
    67,734.92x = 93,474.82 × 40,872.24
  4. Step 4: Simplify right side
    67,734.92x = 3,820,525,277.00
  5. Step 5: Solve for x
    x = 3,820,525,277.00/67,734.92
  6. Step 6: Final answer
    x = 56,404.07

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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.