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Finding the Fourth Proportional to 247,311.20, 370,966.80 and 168,579.20

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Solution

The fourth proportional to 247,311.20, 370,966.80 and 168,579.20 is: 252,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,311.20 : 370,966.80 = 168,579.20 : x
  2. Step 2: Convert to fraction form
    247,311.20/370,966.80 = 168,579.20/x
  3. Step 3: Cross multiply
    247,311.20x = 370,966.80 × 168,579.20
  4. Step 4: Simplify right side
    247,311.20x = 62,537,286,370.56
  5. Step 5: Solve for x
    x = 62,537,286,370.56/247,311.20
  6. Step 6: Final answer
    x = 252,868.80

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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.