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Finding the Fourth Proportional to 127,809.27, 176,369.32 and 73,348.87

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Solution

The fourth proportional to 127,809.27, 176,369.32 and 73,348.87 is: 101,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,809.27 : 176,369.32 = 73,348.87 : x
  2. Step 2: Convert to fraction form
    127,809.27/176,369.32 = 73,348.87/x
  3. Step 3: Cross multiply
    127,809.27x = 176,369.32 × 73,348.87
  4. Step 4: Simplify right side
    127,809.27x = 12,936,490,016.38
  5. Step 5: Solve for x
    x = 12,936,490,016.38/127,809.27
  6. Step 6: Final answer
    x = 101,217.15

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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.