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Finding the Fourth Proportional to 92,108.62, 127,100.90 and 51,821.54

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Solution

The fourth proportional to 92,108.62, 127,100.90 and 51,821.54 is: 71,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,108.62 : 127,100.90 = 51,821.54 : x
  2. Step 2: Convert to fraction form
    92,108.62/127,100.90 = 51,821.54/x
  3. Step 3: Cross multiply
    92,108.62x = 127,100.90 × 51,821.54
  4. Step 4: Simplify right side
    92,108.62x = 6,586,564,373.39
  5. Step 5: Solve for x
    x = 6,586,564,373.39/92,108.62
  6. Step 6: Final answer
    x = 71,508.66

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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.