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Finding the Fourth Proportional to 127,669.97, 176,053.88 and 84,634.49

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Solution

The fourth proportional to 127,669.97, 176,053.88 and 84,634.49 is: 116,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,669.97 : 176,053.88 = 84,634.49 : x
  2. Step 2: Convert to fraction form
    127,669.97/176,053.88 = 84,634.49/x
  3. Step 3: Cross multiply
    127,669.97x = 176,053.88 × 84,634.49
  4. Step 4: Simplify right side
    127,669.97x = 14,900,229,677.64
  5. Step 5: Solve for x
    x = 14,900,229,677.64/127,669.97
  6. Step 6: Final answer
    x = 116,708.97

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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.