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Finding the Fourth Proportional to 84,004.52, 125,919.66 and 44,551.40

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Solution

The fourth proportional to 84,004.52, 125,919.66 and 44,551.40 is: 66,780.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,004.52 : 125,919.66 = 44,551.40 : x
  2. Step 2: Convert to fraction form
    84,004.52/125,919.66 = 44,551.40/x
  3. Step 3: Cross multiply
    84,004.52x = 125,919.66 × 44,551.40
  4. Step 4: Simplify right side
    84,004.52x = 5,609,897,140.52
  5. Step 5: Solve for x
    x = 5,609,897,140.52/84,004.52
  6. Step 6: Final answer
    x = 66,780.90

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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.