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Finding the Fourth Proportional to 126,963.36, 175,208.94 and 69,603

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Solution

The fourth proportional to 126,963.36, 175,208.94 and 69,603 is: 96,051.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,963.36 : 175,208.94 = 69,603 : x
  2. Step 2: Convert to fraction form
    126,963.36/175,208.94 = 69,603/x
  3. Step 3: Cross multiply
    126,963.36x = 175,208.94 × 69,603
  4. Step 4: Simplify right side
    126,963.36x = 12,195,067,850.82
  5. Step 5: Solve for x
    x = 12,195,067,850.82/126,963.36
  6. Step 6: Final answer
    x = 96,051.87

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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.