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Finding the Fourth Proportional to 91,449.92, 126,204.48 and 53,723.84

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Solution

The fourth proportional to 91,449.92, 126,204.48 and 53,723.84 is: 74,141.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,449.92 : 126,204.48 = 53,723.84 : x
  2. Step 2: Convert to fraction form
    91,449.92/126,204.48 = 53,723.84/x
  3. Step 3: Cross multiply
    91,449.92x = 126,204.48 × 53,723.84
  4. Step 4: Simplify right side
    91,449.92x = 6,780,189,290.80
  5. Step 5: Solve for x
    x = 6,780,189,290.80/91,449.92
  6. Step 6: Final answer
    x = 74,141.01

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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.