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Finding the Fourth Proportional to 112,996.68, 169,504.98 and 41,920.11

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Solution

The fourth proportional to 112,996.68, 169,504.98 and 41,920.11 is: 62,883.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,996.68 : 169,504.98 = 41,920.11 : x
  2. Step 2: Convert to fraction form
    112,996.68/169,504.98 = 41,920.11/x
  3. Step 3: Cross multiply
    112,996.68x = 169,504.98 × 41,920.11
  4. Step 4: Simplify right side
    112,996.68x = 7,105,667,407.15
  5. Step 5: Solve for x
    x = 7,105,667,407.15/112,996.68
  6. Step 6: Final answer
    x = 62,883.86

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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.