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Finding the Fourth Proportional to 67,873.97, 93,721.11 and 42,410

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Solution

The fourth proportional to 67,873.97, 93,721.11 and 42,410 is: 58,560.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,873.97 : 93,721.11 = 42,410 : x
  2. Step 2: Convert to fraction form
    67,873.97/93,721.11 = 42,410/x
  3. Step 3: Cross multiply
    67,873.97x = 93,721.11 × 42,410
  4. Step 4: Simplify right side
    67,873.97x = 3,974,712,275.10
  5. Step 5: Solve for x
    x = 3,974,712,275.10/67,873.97
  6. Step 6: Final answer
    x = 58,560.19

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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.