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Finding the Fourth Proportional to 74,508.00, 111,767.48 and 21,919.76

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Solution

The fourth proportional to 74,508.00, 111,767.48 and 21,919.76 is: 32,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.00 : 111,767.48 = 21,919.76 : x
  2. Step 2: Convert to fraction form
    74,508.00/111,767.48 = 21,919.76/x
  3. Step 3: Cross multiply
    74,508.00x = 111,767.48 × 21,919.76
  4. Step 4: Simplify right side
    74,508.00x = 2,449,916,170.30
  5. Step 5: Solve for x
    x = 2,449,916,170.30/74,508.00
  6. Step 6: Final answer
    x = 32,881.25

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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.