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Finding the Fourth Proportional to 127,274.92, 190,731.84 and 93,731.92

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Solution

The fourth proportional to 127,274.92, 190,731.84 and 93,731.92 is: 140,464.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,274.92 : 190,731.84 = 93,731.92 : x
  2. Step 2: Convert to fraction form
    127,274.92/190,731.84 = 93,731.92/x
  3. Step 3: Cross multiply
    127,274.92x = 190,731.84 × 93,731.92
  4. Step 4: Simplify right side
    127,274.92x = 17,877,661,568.33
  5. Step 5: Solve for x
    x = 17,877,661,568.33/127,274.92
  6. Step 6: Final answer
    x = 140,464.92

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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.