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Finding the Fourth Proportional to 127,854.28, 191,847.12 and 98,059.92

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Solution

The fourth proportional to 127,854.28, 191,847.12 and 98,059.92 is: 147,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,854.28 : 191,847.12 = 98,059.92 : x
  2. Step 2: Convert to fraction form
    127,854.28/191,847.12 = 98,059.92/x
  3. Step 3: Cross multiply
    127,854.28x = 191,847.12 × 98,059.92
  4. Step 4: Simplify right side
    127,854.28x = 18,812,513,239.43
  5. Step 5: Solve for x
    x = 18,812,513,239.43/127,854.28
  6. Step 6: Final answer
    x = 147,140.27

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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.