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Finding the Fourth Proportional to 362,551.30, 543,827.15 and 137,859.86

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Solution

The fourth proportional to 362,551.30, 543,827.15 and 137,859.86 is: 206,789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,551.30 : 543,827.15 = 137,859.86 : x
  2. Step 2: Convert to fraction form
    362,551.30/543,827.15 = 137,859.86/x
  3. Step 3: Cross multiply
    362,551.30x = 543,827.15 × 137,859.86
  4. Step 4: Simplify right side
    362,551.30x = 74,971,934,763.20
  5. Step 5: Solve for x
    x = 74,971,934,763.20/362,551.30
  6. Step 6: Final answer
    x = 206,789.87

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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.