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Finding the Fourth Proportional to 185,966.88, 256,628.88 and 101,081.76

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Solution

The fourth proportional to 185,966.88, 256,628.88 and 101,081.76 is: 139,489.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,966.88 : 256,628.88 = 101,081.76 : x
  2. Step 2: Convert to fraction form
    185,966.88/256,628.88 = 101,081.76/x
  3. Step 3: Cross multiply
    185,966.88x = 256,628.88 × 101,081.76
  4. Step 4: Simplify right side
    185,966.88x = 25,940,498,857.23
  5. Step 5: Solve for x
    x = 25,940,498,857.23/185,966.88
  6. Step 6: Final answer
    x = 139,489.89

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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.