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Finding the Fourth Proportional to 108,908.20, 163,367.10 and 61,522.60

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Solution

The fourth proportional to 108,908.20, 163,367.10 and 61,522.60 is: 92,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,908.20 : 163,367.10 = 61,522.60 : x
  2. Step 2: Convert to fraction form
    108,908.20/163,367.10 = 61,522.60/x
  3. Step 3: Cross multiply
    108,908.20x = 163,367.10 × 61,522.60
  4. Step 4: Simplify right side
    108,908.20x = 10,050,768,746.46
  5. Step 5: Solve for x
    x = 10,050,768,746.46/108,908.20
  6. Step 6: Final answer
    x = 92,286.61

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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.