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Finding the Fourth Proportional to 68,458.60, 102,515.10 and 44,957.80

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Solution

The fourth proportional to 68,458.60, 102,515.10 and 44,957.80 is: 67,323.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,458.60 : 102,515.10 = 44,957.80 : x
  2. Step 2: Convert to fraction form
    68,458.60/102,515.10 = 44,957.80/x
  3. Step 3: Cross multiply
    68,458.60x = 102,515.10 × 44,957.80
  4. Step 4: Simplify right side
    68,458.60x = 4,608,853,362.78
  5. Step 5: Solve for x
    x = 4,608,853,362.78/68,458.60
  6. Step 6: Final answer
    x = 67,323.22

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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.