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Finding the Fourth Proportional to 67,329.80, 100,848.90 and 43,710.20

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Solution

The fourth proportional to 67,329.80, 100,848.90 and 43,710.20 is: 65,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,329.80 : 100,848.90 = 43,710.20 : x
  2. Step 2: Convert to fraction form
    67,329.80/100,848.90 = 43,710.20/x
  3. Step 3: Cross multiply
    67,329.80x = 100,848.90 × 43,710.20
  4. Step 4: Simplify right side
    67,329.80x = 4,408,125,588.78
  5. Step 5: Solve for x
    x = 4,408,125,588.78/67,329.80
  6. Step 6: Final answer
    x = 65,470.65

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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.