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Finding the Fourth Proportional to 113,375.20, 170,062.80 and 29,135.20

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Solution

The fourth proportional to 113,375.20, 170,062.80 and 29,135.20 is: 43,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,375.20 : 170,062.80 = 29,135.20 : x
  2. Step 2: Convert to fraction form
    113,375.20/170,062.80 = 29,135.20/x
  3. Step 3: Cross multiply
    113,375.20x = 170,062.80 × 29,135.20
  4. Step 4: Simplify right side
    113,375.20x = 4,954,813,690.56
  5. Step 5: Solve for x
    x = 4,954,813,690.56/113,375.20
  6. Step 6: Final answer
    x = 43,702.80

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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.