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Finding the Fourth Proportional to 126,963.93, 190,469.97 and 51,068.28

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Solution

The fourth proportional to 126,963.93, 190,469.97 and 51,068.28 is: 76,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,963.93 : 190,469.97 = 51,068.28 : x
  2. Step 2: Convert to fraction form
    126,963.93/190,469.97 = 51,068.28/x
  3. Step 3: Cross multiply
    126,963.93x = 190,469.97 × 51,068.28
  4. Step 4: Simplify right side
    126,963.93x = 9,726,973,759.55
  5. Step 5: Solve for x
    x = 9,726,973,759.55/126,963.93
  6. Step 6: Final answer
    x = 76,612.10

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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.