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Finding the Fourth Proportional to 122,269.14, 168,767.28 and 79,834.14

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Solution

The fourth proportional to 122,269.14, 168,767.28 and 79,834.14 is: 110,194.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,269.14 : 168,767.28 = 79,834.14 : x
  2. Step 2: Convert to fraction form
    122,269.14/168,767.28 = 79,834.14/x
  3. Step 3: Cross multiply
    122,269.14x = 168,767.28 × 79,834.14
  4. Step 4: Simplify right side
    122,269.14x = 13,473,390,658.94
  5. Step 5: Solve for x
    x = 13,473,390,658.94/122,269.14
  6. Step 6: Final answer
    x = 110,194.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.