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Finding the Fourth Proportional to 112,267.55, 168,400.86 and 45,691.90

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Solution

The fourth proportional to 112,267.55, 168,400.86 and 45,691.90 is: 68,537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,267.55 : 168,400.86 = 45,691.90 : x
  2. Step 2: Convert to fraction form
    112,267.55/168,400.86 = 45,691.90/x
  3. Step 3: Cross multiply
    112,267.55x = 168,400.86 × 45,691.90
  4. Step 4: Simplify right side
    112,267.55x = 7,694,554,662.69
  5. Step 5: Solve for x
    x = 7,694,554,662.69/112,267.55
  6. Step 6: Final answer
    x = 68,537.65

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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.