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Finding the Fourth Proportional to 74,899.28, 112,351.22 and 32,757.68

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Solution

The fourth proportional to 74,899.28, 112,351.22 and 32,757.68 is: 49,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,899.28 : 112,351.22 = 32,757.68 : x
  2. Step 2: Convert to fraction form
    74,899.28/112,351.22 = 32,757.68/x
  3. Step 3: Cross multiply
    74,899.28x = 112,351.22 × 32,757.68
  4. Step 4: Simplify right side
    74,899.28x = 3,680,365,312.37
  5. Step 5: Solve for x
    x = 3,680,365,312.37/74,899.28
  6. Step 6: Final answer
    x = 49,137.53

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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.