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Finding the Fourth Proportional to 92,079.31, 127,070.76 and 54,353.56

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Solution

The fourth proportional to 92,079.31, 127,070.76 and 54,353.56 is: 75,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,079.31 : 127,070.76 = 54,353.56 : x
  2. Step 2: Convert to fraction form
    92,079.31/127,070.76 = 54,353.56/x
  3. Step 3: Cross multiply
    92,079.31x = 127,070.76 × 54,353.56
  4. Step 4: Simplify right side
    92,079.31x = 6,906,748,177.91
  5. Step 5: Solve for x
    x = 6,906,748,177.91/92,079.31
  6. Step 6: Final answer
    x = 75,008.69

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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.