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Finding the Fourth Proportional to 68,617.18, 102,819.51 and 47,598.10

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Solution

The fourth proportional to 68,617.18, 102,819.51 and 47,598.10 is: 71,323.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,617.18 : 102,819.51 = 47,598.10 : x
  2. Step 2: Convert to fraction form
    68,617.18/102,819.51 = 47,598.10/x
  3. Step 3: Cross multiply
    68,617.18x = 102,819.51 × 47,598.10
  4. Step 4: Simplify right side
    68,617.18x = 4,894,013,318.93
  5. Step 5: Solve for x
    x = 4,894,013,318.93/68,617.18
  6. Step 6: Final answer
    x = 71,323.44

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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.