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Finding the Fourth Proportional to 84,993,194.60, 127,489,791.90 and 83,103,626.60

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Solution

The fourth proportional to 84,993,194.60, 127,489,791.90 and 83,103,626.60 is: 124,655,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,993,194.60 : 127,489,791.90 = 83,103,626.60 : x
  2. Step 2: Convert to fraction form
    84,993,194.60/127,489,791.90 = 83,103,626.60/x
  3. Step 3: Cross multiply
    84,993,194.60x = 127,489,791.90 × 83,103,626.60
  4. Step 4: Simplify right side
    84,993,194.60x = 10,594,864,061,369,304
  5. Step 5: Solve for x
    x = 10,594,864,061,369,304/84,993,194.60
  6. Step 6: Final answer
    x = 124,655,439.90

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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.