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Finding the Fourth Proportional to 203,702.60, 281,101.25 and 113,062.38

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Solution

The fourth proportional to 203,702.60, 281,101.25 and 113,062.38 is: 156,021.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,702.60 : 281,101.25 = 113,062.38 : x
  2. Step 2: Convert to fraction form
    203,702.60/281,101.25 = 113,062.38/x
  3. Step 3: Cross multiply
    203,702.60x = 281,101.25 × 113,062.38
  4. Step 4: Simplify right side
    203,702.60x = 31,781,975,780.66
  5. Step 5: Solve for x
    x = 31,781,975,780.66/203,702.60
  6. Step 6: Final answer
    x = 156,021.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.