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Finding the Fourth Proportional to 126,548.45, 174,640.51 and 69,963.47

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Solution

The fourth proportional to 126,548.45, 174,640.51 and 69,963.47 is: 96,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,548.45 : 174,640.51 = 69,963.47 : x
  2. Step 2: Convert to fraction form
    126,548.45/174,640.51 = 69,963.47/x
  3. Step 3: Cross multiply
    126,548.45x = 174,640.51 × 69,963.47
  4. Step 4: Simplify right side
    126,548.45x = 12,218,456,082.17
  5. Step 5: Solve for x
    x = 12,218,456,082.17/126,548.45
  6. Step 6: Final answer
    x = 96,551.61

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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.