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Finding the Fourth Proportional to 126,551.61, 174,633.71 and 69,959.61

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Solution

The fourth proportional to 126,551.61, 174,633.71 and 69,959.61 is: 96,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,551.61 : 174,633.71 = 69,959.61 : x
  2. Step 2: Convert to fraction form
    126,551.61/174,633.71 = 69,959.61/x
  3. Step 3: Cross multiply
    126,551.61x = 174,633.71 × 69,959.61
  4. Step 4: Simplify right side
    126,551.61x = 12,217,305,371.28
  5. Step 5: Solve for x
    x = 12,217,305,371.28/126,551.61
  6. Step 6: Final answer
    x = 96,540.11

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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.