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Finding the Fourth Proportional to 127,587.79, 176,059.69 and 73,876.44

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Solution

The fourth proportional to 127,587.79, 176,059.69 and 73,876.44 is: 101,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,587.79 : 176,059.69 = 73,876.44 : x
  2. Step 2: Convert to fraction form
    127,587.79/176,059.69 = 73,876.44/x
  3. Step 3: Cross multiply
    127,587.79x = 176,059.69 × 73,876.44
  4. Step 4: Simplify right side
    127,587.79x = 13,006,663,124.70
  5. Step 5: Solve for x
    x = 13,006,663,124.70/127,587.79
  6. Step 6: Final answer
    x = 101,942.85

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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.