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Finding the Fourth Proportional to 68,272.71, 94,177.74 and 42,734.74

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Solution

The fourth proportional to 68,272.71, 94,177.74 and 42,734.74 is: 58,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,272.71 : 94,177.74 = 42,734.74 : x
  2. Step 2: Convert to fraction form
    68,272.71/94,177.74 = 42,734.74/x
  3. Step 3: Cross multiply
    68,272.71x = 94,177.74 × 42,734.74
  4. Step 4: Simplify right side
    68,272.71x = 4,024,661,232.69
  5. Step 5: Solve for x
    x = 4,024,661,232.69/68,272.71
  6. Step 6: Final answer
    x = 58,949.78

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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.