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Finding the Fourth Proportional to 269,319.45, 403,855.01 and 79,712.02

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Solution

The fourth proportional to 269,319.45, 403,855.01 and 79,712.02 is: 119,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,319.45 : 403,855.01 = 79,712.02 : x
  2. Step 2: Convert to fraction form
    269,319.45/403,855.01 = 79,712.02/x
  3. Step 3: Cross multiply
    269,319.45x = 403,855.01 × 79,712.02
  4. Step 4: Simplify right side
    269,319.45x = 32,192,098,634.22
  5. Step 5: Solve for x
    x = 32,192,098,634.22/269,319.45
  6. Step 6: Final answer
    x = 119,531.28

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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.