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Finding the Fourth Proportional to 127,272.92, 190,728.84 and 93,729.92

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Solution

The fourth proportional to 127,272.92, 190,728.84 and 93,729.92 is: 140,461.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,272.92 : 190,728.84 = 93,729.92 : x
  2. Step 2: Convert to fraction form
    127,272.92/190,728.84 = 93,729.92/x
  3. Step 3: Cross multiply
    127,272.92x = 190,728.84 × 93,729.92
  4. Step 4: Simplify right side
    127,272.92x = 17,876,998,914.89
  5. Step 5: Solve for x
    x = 17,876,998,914.89/127,272.92
  6. Step 6: Final answer
    x = 140,461.92

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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.