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Finding the Fourth Proportional to 122,274.42, 168,740.42 and 73,869.62

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Solution

The fourth proportional to 122,274.42, 168,740.42 and 73,869.62 is: 101,941.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,274.42 : 168,740.42 = 73,869.62 : x
  2. Step 2: Convert to fraction form
    122,274.42/168,740.42 = 73,869.62/x
  3. Step 3: Cross multiply
    122,274.42x = 168,740.42 × 73,869.62
  4. Step 4: Simplify right side
    122,274.42x = 12,464,790,704.04
  5. Step 5: Solve for x
    x = 12,464,790,704.04/122,274.42
  6. Step 6: Final answer
    x = 101,941.11

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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.