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Finding the Fourth Proportional to 339,642.75, 468,587.52 and 203,720.70

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Solution

The fourth proportional to 339,642.75, 468,587.52 and 203,720.70 is: 281,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,642.75 : 468,587.52 = 203,720.70 : x
  2. Step 2: Convert to fraction form
    339,642.75/468,587.52 = 203,720.70/x
  3. Step 3: Cross multiply
    339,642.75x = 468,587.52 × 203,720.70
  4. Step 4: Simplify right side
    339,642.75x = 95,460,977,585.66
  5. Step 5: Solve for x
    x = 95,460,977,585.66/339,642.75
  6. Step 6: Final answer
    x = 281,062.90

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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.