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Finding the Fourth Proportional to 74,657.20, 112,006.20 and 22,066.64

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Solution

The fourth proportional to 74,657.20, 112,006.20 and 22,066.64 is: 33,105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,657.20 : 112,006.20 = 22,066.64 : x
  2. Step 2: Convert to fraction form
    74,657.20/112,006.20 = 22,066.64/x
  3. Step 3: Cross multiply
    74,657.20x = 112,006.20 × 22,066.64
  4. Step 4: Simplify right side
    74,657.20x = 2,471,600,493.17
  5. Step 5: Solve for x
    x = 2,471,600,493.17/74,657.20
  6. Step 6: Final answer
    x = 33,105.99

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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.