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Finding the Fourth Proportional to 62,112.80, 93,169.20 and 43,353.20

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Solution

The fourth proportional to 62,112.80, 93,169.20 and 43,353.20 is: 65,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,112.80 : 93,169.20 = 43,353.20 : x
  2. Step 2: Convert to fraction form
    62,112.80/93,169.20 = 43,353.20/x
  3. Step 3: Cross multiply
    62,112.80x = 93,169.20 × 43,353.20
  4. Step 4: Simplify right side
    62,112.80x = 4,039,182,961.44
  5. Step 5: Solve for x
    x = 4,039,182,961.44/62,112.80
  6. Step 6: Final answer
    x = 65,029.80

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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.