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Finding the Fourth Proportional to 92,129.56, 127,171.62 and 54,403.96

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Solution

The fourth proportional to 92,129.56, 127,171.62 and 54,403.96 is: 75,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,129.56 : 127,171.62 = 54,403.96 : x
  2. Step 2: Convert to fraction form
    92,129.56/127,171.62 = 54,403.96/x
  3. Step 3: Cross multiply
    92,129.56x = 127,171.62 × 54,403.96
  4. Step 4: Simplify right side
    92,129.56x = 6,918,639,727.62
  5. Step 5: Solve for x
    x = 6,918,639,727.62/92,129.56
  6. Step 6: Final answer
    x = 75,096.85

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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.