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Finding the Fourth Proportional to 92,760.48, 127,951.20 and 55,008

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Solution

The fourth proportional to 92,760.48, 127,951.20 and 55,008 is: 75,876.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,760.48 : 127,951.20 = 55,008 : x
  2. Step 2: Convert to fraction form
    92,760.48/127,951.20 = 55,008/x
  3. Step 3: Cross multiply
    92,760.48x = 127,951.20 × 55,008
  4. Step 4: Simplify right side
    92,760.48x = 7,038,339,609.60
  5. Step 5: Solve for x
    x = 7,038,339,609.60/92,760.48
  6. Step 6: Final answer
    x = 75,876.49

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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.