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Finding the Fourth Proportional to 96,747.60, 144,745.90 and 84,811.60

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Solution

The fourth proportional to 96,747.60, 144,745.90 and 84,811.60 is: 126,888.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,747.60 : 144,745.90 = 84,811.60 : x
  2. Step 2: Convert to fraction form
    96,747.60/144,745.90 = 84,811.60/x
  3. Step 3: Cross multiply
    96,747.60x = 144,745.90 × 84,811.60
  4. Step 4: Simplify right side
    96,747.60x = 12,276,131,372.44
  5. Step 5: Solve for x
    x = 12,276,131,372.44/96,747.60
  6. Step 6: Final answer
    x = 126,888.23

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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.