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Finding the Fourth Proportional to 179,383.82, 268,943.96 and 85,955.18

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Solution

The fourth proportional to 179,383.82, 268,943.96 and 85,955.18 is: 128,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,383.82 : 268,943.96 = 85,955.18 : x
  2. Step 2: Convert to fraction form
    179,383.82/268,943.96 = 85,955.18/x
  3. Step 3: Cross multiply
    179,383.82x = 268,943.96 × 85,955.18
  4. Step 4: Simplify right side
    179,383.82x = 23,117,126,491.71
  5. Step 5: Solve for x
    x = 23,117,126,491.71/179,383.82
  6. Step 6: Final answer
    x = 128,869.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.