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Finding the Fourth Proportional to 92,045.73, 126,992.55 and 75,020.73

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Solution

The fourth proportional to 92,045.73, 126,992.55 and 75,020.73 is: 103,503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,045.73 : 126,992.55 = 75,020.73 : x
  2. Step 2: Convert to fraction form
    92,045.73/126,992.55 = 75,020.73/x
  3. Step 3: Cross multiply
    92,045.73x = 126,992.55 × 75,020.73
  4. Step 4: Simplify right side
    92,045.73x = 9,527,073,805.56
  5. Step 5: Solve for x
    x = 9,527,073,805.56/92,045.73
  6. Step 6: Final answer
    x = 103,503.70

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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.