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Finding the Fourth Proportional to 83,859.60, 125,789.40 and 48,867.60

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Solution

The fourth proportional to 83,859.60, 125,789.40 and 48,867.60 is: 73,301.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,859.60 : 125,789.40 = 48,867.60 : x
  2. Step 2: Convert to fraction form
    83,859.60/125,789.40 = 48,867.60/x
  3. Step 3: Cross multiply
    83,859.60x = 125,789.40 × 48,867.60
  4. Step 4: Simplify right side
    83,859.60x = 6,147,026,083.44
  5. Step 5: Solve for x
    x = 6,147,026,083.44/83,859.60
  6. Step 6: Final answer
    x = 73,301.40

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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.