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Finding the Fourth Proportional to 96,750.80, 144,953.40 and 79,125.20

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Solution

The fourth proportional to 96,750.80, 144,953.40 and 79,125.20 is: 118,546.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,750.80 : 144,953.40 = 79,125.20 : x
  2. Step 2: Convert to fraction form
    96,750.80/144,953.40 = 79,125.20/x
  3. Step 3: Cross multiply
    96,750.80x = 144,953.40 × 79,125.20
  4. Step 4: Simplify right side
    96,750.80x = 11,469,466,765.68
  5. Step 5: Solve for x
    x = 11,469,466,765.68/96,750.80
  6. Step 6: Final answer
    x = 118,546.48

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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.