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Finding the Fourth Proportional to 119,016.89, 164,243.28 and 68,030.72

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Solution

The fourth proportional to 119,016.89, 164,243.28 and 68,030.72 is: 93,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,016.89 : 164,243.28 = 68,030.72 : x
  2. Step 2: Convert to fraction form
    119,016.89/164,243.28 = 68,030.72/x
  3. Step 3: Cross multiply
    119,016.89x = 164,243.28 × 68,030.72
  4. Step 4: Simplify right side
    119,016.89x = 11,173,588,593.56
  5. Step 5: Solve for x
    x = 11,173,588,593.56/119,016.89
  6. Step 6: Final answer
    x = 93,882.38

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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.