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Finding the Fourth Proportional to 68,315.28, 101,793.78 and 60,862.47

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Solution

The fourth proportional to 68,315.28, 101,793.78 and 60,862.47 is: 90,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,315.28 : 101,793.78 = 60,862.47 : x
  2. Step 2: Convert to fraction form
    68,315.28/101,793.78 = 60,862.47/x
  3. Step 3: Cross multiply
    68,315.28x = 101,793.78 × 60,862.47
  4. Step 4: Simplify right side
    68,315.28x = 6,195,420,881.44
  5. Step 5: Solve for x
    x = 6,195,420,881.44/68,315.28
  6. Step 6: Final answer
    x = 90,688.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.