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Finding the Fourth Proportional to 247,689.20, 371,317.80 and 168,546.80

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Solution

The fourth proportional to 247,689.20, 371,317.80 and 168,546.80 is: 252,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,689.20 : 371,317.80 = 168,546.80 : x
  2. Step 2: Convert to fraction form
    247,689.20/371,317.80 = 168,546.80/x
  3. Step 3: Cross multiply
    247,689.20x = 371,317.80 × 168,546.80
  4. Step 4: Simplify right side
    247,689.20x = 62,584,426,973.04
  5. Step 5: Solve for x
    x = 62,584,426,973.04/247,689.20
  6. Step 6: Final answer
    x = 252,673.22

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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.