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Finding the Fourth Proportional to 68,295.92, 102,475.56 and 28,862.24

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Solution

The fourth proportional to 68,295.92, 102,475.56 and 28,862.24 is: 43,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,295.92 : 102,475.56 = 28,862.24 : x
  2. Step 2: Convert to fraction form
    68,295.92/102,475.56 = 28,862.24/x
  3. Step 3: Cross multiply
    68,295.92x = 102,475.56 × 28,862.24
  4. Step 4: Simplify right side
    68,295.92x = 2,957,674,206.85
  5. Step 5: Solve for x
    x = 2,957,674,206.85/68,295.92
  6. Step 6: Final answer
    x = 43,306.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.