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Finding the Fourth Proportional to 126,718.44, 174,870.11 and 68,573.90

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Solution

The fourth proportional to 126,718.44, 174,870.11 and 68,573.90 is: 94,631.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,718.44 : 174,870.11 = 68,573.90 : x
  2. Step 2: Convert to fraction form
    126,718.44/174,870.11 = 68,573.90/x
  3. Step 3: Cross multiply
    126,718.44x = 174,870.11 × 68,573.90
  4. Step 4: Simplify right side
    126,718.44x = 11,991,524,218.91
  5. Step 5: Solve for x
    x = 11,991,524,218.91/126,718.44
  6. Step 6: Final answer
    x = 94,631.25

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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.