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Finding the Fourth Proportional to 297,581.40, 446,375.73 and 87,223.56

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Solution

The fourth proportional to 297,581.40, 446,375.73 and 87,223.56 is: 130,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,581.40 : 446,375.73 = 87,223.56 : x
  2. Step 2: Convert to fraction form
    297,581.40/446,375.73 = 87,223.56/x
  3. Step 3: Cross multiply
    297,581.40x = 446,375.73 × 87,223.56
  4. Step 4: Simplify right side
    297,581.40x = 38,934,480,268.20
  5. Step 5: Solve for x
    x = 38,934,480,268.20/297,581.40
  6. Step 6: Final answer
    x = 130,836.40

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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.