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Finding the Fourth Proportional to 96,249.60, 144,220.80 and 80,582.40

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Solution

The fourth proportional to 96,249.60, 144,220.80 and 80,582.40 is: 120,745.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,249.60 : 144,220.80 = 80,582.40 : x
  2. Step 2: Convert to fraction form
    96,249.60/144,220.80 = 80,582.40/x
  3. Step 3: Cross multiply
    96,249.60x = 144,220.80 × 80,582.40
  4. Step 4: Simplify right side
    96,249.60x = 11,621,658,193.92
  5. Step 5: Solve for x
    x = 11,621,658,193.92/96,249.60
  6. Step 6: Final answer
    x = 120,745.00

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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.