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Finding the Fourth Proportional to 297,338.38, 446,003.57 and 72,700.75

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Solution

The fourth proportional to 297,338.38, 446,003.57 and 72,700.75 is: 109,050.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,338.38 : 446,003.57 = 72,700.75 : x
  2. Step 2: Convert to fraction form
    297,338.38/446,003.57 = 72,700.75/x
  3. Step 3: Cross multiply
    297,338.38x = 446,003.57 × 72,700.75
  4. Step 4: Simplify right side
    297,338.38x = 32,424,794,041.68
  5. Step 5: Solve for x
    x = 32,424,794,041.68/297,338.38
  6. Step 6: Final answer
    x = 109,050.15

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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.