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Finding the Fourth Proportional to 68,894.17, 95,073.14 and 38,678.74

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Solution

The fourth proportional to 68,894.17, 95,073.14 and 38,678.74 is: 53,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,894.17 : 95,073.14 = 38,678.74 : x
  2. Step 2: Convert to fraction form
    68,894.17/95,073.14 = 38,678.74/x
  3. Step 3: Cross multiply
    68,894.17x = 95,073.14 × 38,678.74
  4. Step 4: Simplify right side
    68,894.17x = 3,677,309,122.06
  5. Step 5: Solve for x
    x = 3,677,309,122.06/68,894.17
  6. Step 6: Final answer
    x = 53,376.20

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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.