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Finding the Fourth Proportional to 92,108.61, 127,078.07 and 51,815.97

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Solution

The fourth proportional to 92,108.61, 127,078.07 and 51,815.97 is: 71,488.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,108.61 : 127,078.07 = 51,815.97 : x
  2. Step 2: Convert to fraction form
    92,108.61/127,078.07 = 51,815.97/x
  3. Step 3: Cross multiply
    92,108.61x = 127,078.07 × 51,815.97
  4. Step 4: Simplify right side
    92,108.61x = 6,584,673,203.70
  5. Step 5: Solve for x
    x = 6,584,673,203.70/92,108.61
  6. Step 6: Final answer
    x = 71,488.14

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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.