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Finding the Fourth Proportional to 113,319,099.20, 169,978,648.80 and 88,660,236.80

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Solution

The fourth proportional to 113,319,099.20, 169,978,648.80 and 88,660,236.80 is: 132,990,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,319,099.20 : 169,978,648.80 = 88,660,236.80 : x
  2. Step 2: Convert to fraction form
    113,319,099.20/169,978,648.80 = 88,660,236.80/x
  3. Step 3: Cross multiply
    113,319,099.20x = 169,978,648.80 × 88,660,236.80
  4. Step 4: Simplify right side
    113,319,099.20x = 15,070,347,253,552,036
  5. Step 5: Solve for x
    x = 15,070,347,253,552,036/113,319,099.20
  6. Step 6: Final answer
    x = 132,990,355.20

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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.