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Finding the Fourth Proportional to 297,680.80, 446,593.20 and 87,325.60

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Solution

The fourth proportional to 297,680.80, 446,593.20 and 87,325.60 is: 131,009.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,680.80 : 446,593.20 = 87,325.60 : x
  2. Step 2: Convert to fraction form
    297,680.80/446,593.20 = 87,325.60/x
  3. Step 3: Cross multiply
    297,680.80x = 446,593.20 × 87,325.60
  4. Step 4: Simplify right side
    297,680.80x = 38,999,019,145.92
  5. Step 5: Solve for x
    x = 38,999,019,145.92/297,680.80
  6. Step 6: Final answer
    x = 131,009.52

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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.