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Finding the Fourth Proportional to 403,251.67, 604,883.45 and 103,725.55

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Solution

The fourth proportional to 403,251.67, 604,883.45 and 103,725.55 is: 155,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,251.67 : 604,883.45 = 103,725.55 : x
  2. Step 2: Convert to fraction form
    403,251.67/604,883.45 = 103,725.55/x
  3. Step 3: Cross multiply
    403,251.67x = 604,883.45 × 103,725.55
  4. Step 4: Simplify right side
    403,251.67x = 62,741,868,537.15
  5. Step 5: Solve for x
    x = 62,741,868,537.15/403,251.67
  6. Step 6: Final answer
    x = 155,589.85

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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.