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Finding the Fourth Proportional to 361,568.19, 542,357.97 and 136,868.30

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Solution

The fourth proportional to 361,568.19, 542,357.97 and 136,868.30 is: 205,304.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,568.19 : 542,357.97 = 136,868.30 : x
  2. Step 2: Convert to fraction form
    361,568.19/542,357.97 = 136,868.30/x
  3. Step 3: Cross multiply
    361,568.19x = 542,357.97 × 136,868.30
  4. Step 4: Simplify right side
    361,568.19x = 74,231,610,633.56
  5. Step 5: Solve for x
    x = 74,231,610,633.56/361,568.19
  6. Step 6: Final answer
    x = 205,304.59

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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.