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Finding the Fourth Proportional to 159,733.92, 220,442.88 and 91,772.64

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Solution

The fourth proportional to 159,733.92, 220,442.88 and 91,772.64 is: 126,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,733.92 : 220,442.88 = 91,772.64 : x
  2. Step 2: Convert to fraction form
    159,733.92/220,442.88 = 91,772.64/x
  3. Step 3: Cross multiply
    159,733.92x = 220,442.88 × 91,772.64
  4. Step 4: Simplify right side
    159,733.92x = 20,230,625,066.80
  5. Step 5: Solve for x
    x = 20,230,625,066.80/159,733.92
  6. Step 6: Final answer
    x = 126,652.03

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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.