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Finding the Fourth Proportional to 269,308.34, 403,974.36 and 79,761.06

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Solution

The fourth proportional to 269,308.34, 403,974.36 and 79,761.06 is: 119,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,308.34 : 403,974.36 = 79,761.06 : x
  2. Step 2: Convert to fraction form
    269,308.34/403,974.36 = 79,761.06/x
  3. Step 3: Cross multiply
    269,308.34x = 403,974.36 × 79,761.06
  4. Step 4: Simplify right side
    269,308.34x = 32,221,423,166.42
  5. Step 5: Solve for x
    x = 32,221,423,166.42/269,308.34
  6. Step 6: Final answer
    x = 119,645.10

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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.