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Finding the Fourth Proportional to 96,532.80, 144,734.40 and 43,915.20

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Solution

The fourth proportional to 96,532.80, 144,734.40 and 43,915.20 is: 65,843.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,532.80 : 144,734.40 = 43,915.20 : x
  2. Step 2: Convert to fraction form
    96,532.80/144,734.40 = 43,915.20/x
  3. Step 3: Cross multiply
    96,532.80x = 144,734.40 × 43,915.20
  4. Step 4: Simplify right side
    96,532.80x = 6,356,040,122.88
  5. Step 5: Solve for x
    x = 6,356,040,122.88/96,532.80
  6. Step 6: Final answer
    x = 65,843.32

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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.