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Finding the Fourth Proportional to 96,404.20, 144,347.10 and 69,965.80

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Solution

The fourth proportional to 96,404.20, 144,347.10 and 69,965.80 is: 104,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,404.20 : 144,347.10 = 69,965.80 : x
  2. Step 2: Convert to fraction form
    96,404.20/144,347.10 = 69,965.80/x
  3. Step 3: Cross multiply
    96,404.20x = 144,347.10 × 69,965.80
  4. Step 4: Simplify right side
    96,404.20x = 10,099,360,329.18
  5. Step 5: Solve for x
    x = 10,099,360,329.18/96,404.20
  6. Step 6: Final answer
    x = 104,760.58

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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.