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Finding the Fourth Proportional to 113,610.60, 156,764.19 and 65,854.62

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Solution

The fourth proportional to 113,610.60, 156,764.19 and 65,854.62 is: 90,868.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,610.60 : 156,764.19 = 65,854.62 : x
  2. Step 2: Convert to fraction form
    113,610.60/156,764.19 = 65,854.62/x
  3. Step 3: Cross multiply
    113,610.60x = 156,764.19 × 65,854.62
  4. Step 4: Simplify right side
    113,610.60x = 10,323,646,162.06
  5. Step 5: Solve for x
    x = 10,323,646,162.06/113,610.60
  6. Step 6: Final answer
    x = 90,868.69

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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.