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Finding the Fourth Proportional to 74,919.40, 112,363.71 and 22,314.76

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Solution

The fourth proportional to 74,919.40, 112,363.71 and 22,314.76 is: 33,467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,919.40 : 112,363.71 = 22,314.76 : x
  2. Step 2: Convert to fraction form
    74,919.40/112,363.71 = 22,314.76/x
  3. Step 3: Cross multiply
    74,919.40x = 112,363.71 × 22,314.76
  4. Step 4: Simplify right side
    74,919.40x = 2,507,369,221.36
  5. Step 5: Solve for x
    x = 2,507,369,221.36/74,919.40
  6. Step 6: Final answer
    x = 33,467.56

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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.