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Finding the Fourth Proportional to 234,609.30, 351,934.66 and 66,131.04

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Solution

The fourth proportional to 234,609.30, 351,934.66 and 66,131.04 is: 99,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,609.30 : 351,934.66 = 66,131.04 : x
  2. Step 2: Convert to fraction form
    234,609.30/351,934.66 = 66,131.04/x
  3. Step 3: Cross multiply
    234,609.30x = 351,934.66 × 66,131.04
  4. Step 4: Simplify right side
    234,609.30x = 23,273,805,077.85
  5. Step 5: Solve for x
    x = 23,273,805,077.85/234,609.30
  6. Step 6: Final answer
    x = 99,202.40

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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.