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Finding the Fourth Proportional to 92,129.97, 127,145.79 and 51,847.59

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Solution

The fourth proportional to 92,129.97, 127,145.79 and 51,847.59 is: 71,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,129.97 : 127,145.79 = 51,847.59 : x
  2. Step 2: Convert to fraction form
    92,129.97/127,145.79 = 51,847.59/x
  3. Step 3: Cross multiply
    92,129.97x = 127,145.79 × 51,847.59
  4. Step 4: Simplify right side
    92,129.97x = 6,592,202,790.15
  5. Step 5: Solve for x
    x = 6,592,202,790.15/92,129.97
  6. Step 6: Final answer
    x = 71,553.29

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1.5x scale

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.