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Finding the Fourth Proportional to 80,294.97, 120,416.94 and 75,053.46

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Solution

The fourth proportional to 80,294.97, 120,416.94 and 75,053.46 is: 112,556.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,294.97 : 120,416.94 = 75,053.46 : x
  2. Step 2: Convert to fraction form
    80,294.97/120,416.94 = 75,053.46/x
  3. Step 3: Cross multiply
    80,294.97x = 120,416.94 × 75,053.46
  4. Step 4: Simplify right side
    80,294.97x = 9,037,707,989.61
  5. Step 5: Solve for x
    x = 9,037,707,989.61/80,294.97
  6. Step 6: Final answer
    x = 112,556.34

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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.