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Finding the Fourth Proportional to 44,679.20, 66,961.20 and 34,239.20

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Solution

The fourth proportional to 44,679.20, 66,961.20 and 34,239.20 is: 51,314.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,679.20 : 66,961.20 = 34,239.20 : x
  2. Step 2: Convert to fraction form
    44,679.20/66,961.20 = 34,239.20/x
  3. Step 3: Cross multiply
    44,679.20x = 66,961.20 × 34,239.20
  4. Step 4: Simplify right side
    44,679.20x = 2,292,697,919.04
  5. Step 5: Solve for x
    x = 2,292,697,919.04/44,679.20
  6. Step 6: Final answer
    x = 51,314.66

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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.