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Finding the Fourth Proportional to 75,049.92, 112,613.76 and 54,443.52

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Solution

The fourth proportional to 75,049.92, 112,613.76 and 54,443.52 is: 81,693.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,049.92 : 112,613.76 = 54,443.52 : x
  2. Step 2: Convert to fraction form
    75,049.92/112,613.76 = 54,443.52/x
  3. Step 3: Cross multiply
    75,049.92x = 112,613.76 × 54,443.52
  4. Step 4: Simplify right side
    75,049.92x = 6,131,089,494.84
  5. Step 5: Solve for x
    x = 6,131,089,494.84/75,049.92
  6. Step 6: Final answer
    x = 81,693.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.