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Finding the Fourth Proportional to 127,752.17, 176,371.07 and 84,789.92

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Solution

The fourth proportional to 127,752.17, 176,371.07 and 84,789.92 is: 117,058.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,752.17 : 176,371.07 = 84,789.92 : x
  2. Step 2: Convert to fraction form
    127,752.17/176,371.07 = 84,789.92/x
  3. Step 3: Cross multiply
    127,752.17x = 176,371.07 × 84,789.92
  4. Step 4: Simplify right side
    127,752.17x = 14,954,489,409.54
  5. Step 5: Solve for x
    x = 14,954,489,409.54/127,752.17
  6. Step 6: Final answer
    x = 117,058.59

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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.