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Finding the Fourth Proportional to 83,704.60, 125,556.90 and 48,712.60

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Solution

The fourth proportional to 83,704.60, 125,556.90 and 48,712.60 is: 73,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,704.60 : 125,556.90 = 48,712.60 : x
  2. Step 2: Convert to fraction form
    83,704.60/125,556.90 = 48,712.60/x
  3. Step 3: Cross multiply
    83,704.60x = 125,556.90 × 48,712.60
  4. Step 4: Simplify right side
    83,704.60x = 6,116,203,046.94
  5. Step 5: Solve for x
    x = 6,116,203,046.94/83,704.60
  6. Step 6: Final answer
    x = 73,068.90

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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.