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Finding the Fourth Proportional to 449,275.28, 673,910.20 and 112,314.32

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Solution

The fourth proportional to 449,275.28, 673,910.20 and 112,314.32 is: 168,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,275.28 : 673,910.20 = 112,314.32 : x
  2. Step 2: Convert to fraction form
    449,275.28/673,910.20 = 112,314.32/x
  3. Step 3: Cross multiply
    449,275.28x = 673,910.20 × 112,314.32
  4. Step 4: Simplify right side
    449,275.28x = 75,689,765,854.06
  5. Step 5: Solve for x
    x = 75,689,765,854.06/449,275.28
  6. Step 6: Final answer
    x = 168,470.80

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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.