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Finding the Fourth Proportional to 83,508.60, 125,276.70 and 41,390.64

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Solution

The fourth proportional to 83,508.60, 125,276.70 and 41,390.64 is: 62,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,508.60 : 125,276.70 = 41,390.64 : x
  2. Step 2: Convert to fraction form
    83,508.60/125,276.70 = 41,390.64/x
  3. Step 3: Cross multiply
    83,508.60x = 125,276.70 × 41,390.64
  4. Step 4: Simplify right side
    83,508.60x = 5,185,282,790.09
  5. Step 5: Solve for x
    x = 5,185,282,790.09/83,508.60
  6. Step 6: Final answer
    x = 62,092.80

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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.