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Finding the Fourth Proportional to 101,695.60, 140,338.92 and 58,659.04

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Solution

The fourth proportional to 101,695.60, 140,338.92 and 58,659.04 is: 80,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,695.60 : 140,338.92 = 58,659.04 : x
  2. Step 2: Convert to fraction form
    101,695.60/140,338.92 = 58,659.04/x
  3. Step 3: Cross multiply
    101,695.60x = 140,338.92 × 58,659.04
  4. Step 4: Simplify right side
    101,695.60x = 8,232,146,321.84
  5. Step 5: Solve for x
    x = 8,232,146,321.84/101,695.60
  6. Step 6: Final answer
    x = 80,948.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.