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Finding the Fourth Proportional to 92,390.76, 127,499.25 and 49,949.30

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Solution

The fourth proportional to 92,390.76, 127,499.25 and 49,949.30 is: 68,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,390.76 : 127,499.25 = 49,949.30 : x
  2. Step 2: Convert to fraction form
    92,390.76/127,499.25 = 49,949.30/x
  3. Step 3: Cross multiply
    92,390.76x = 127,499.25 × 49,949.30
  4. Step 4: Simplify right side
    92,390.76x = 6,368,498,794.08
  5. Step 5: Solve for x
    x = 6,368,498,794.08/92,390.76
  6. Step 6: Final answer
    x = 68,930.04

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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.