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Finding the Fourth Proportional to 113,788.80, 156,232.80 and 92,404.80

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Solution

The fourth proportional to 113,788.80, 156,232.80 and 92,404.80 is: 126,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,788.80 : 156,232.80 = 92,404.80 : x
  2. Step 2: Convert to fraction form
    113,788.80/156,232.80 = 92,404.80/x
  3. Step 3: Cross multiply
    113,788.80x = 156,232.80 × 92,404.80
  4. Step 4: Simplify right side
    113,788.80x = 14,436,660,637.44
  5. Step 5: Solve for x
    x = 14,436,660,637.44/113,788.80
  6. Step 6: Final answer
    x = 126,872.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.