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Finding the Fourth Proportional to 126,993.01, 175,252.25 and 69,637.58

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Solution

The fourth proportional to 126,993.01, 175,252.25 and 69,637.58 is: 96,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,993.01 : 175,252.25 = 69,637.58 : x
  2. Step 2: Convert to fraction form
    126,993.01/175,252.25 = 69,637.58/x
  3. Step 3: Cross multiply
    126,993.01x = 175,252.25 × 69,637.58
  4. Step 4: Simplify right side
    126,993.01x = 12,204,142,579.56
  5. Step 5: Solve for x
    x = 12,204,142,579.56/126,993.01
  6. Step 6: Final answer
    x = 96,100.90

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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.