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Finding the Fourth Proportional to 127,737.76, 191,629.68 and 53,871.52

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Solution

The fourth proportional to 127,737.76, 191,629.68 and 53,871.52 is: 80,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,737.76 : 191,629.68 = 53,871.52 : x
  2. Step 2: Convert to fraction form
    127,737.76/191,629.68 = 53,871.52/x
  3. Step 3: Cross multiply
    127,737.76x = 191,629.68 × 53,871.52
  4. Step 4: Simplify right side
    127,737.76x = 10,323,382,138.71
  5. Step 5: Solve for x
    x = 10,323,382,138.71/127,737.76
  6. Step 6: Final answer
    x = 80,817.00

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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.