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Finding the Fourth Proportional to 119,243.91, 164,553.27 and 65,528.97

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Solution

The fourth proportional to 119,243.91, 164,553.27 and 65,528.97 is: 90,428.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,243.91 : 164,553.27 = 65,528.97 : x
  2. Step 2: Convert to fraction form
    119,243.91/164,553.27 = 65,528.97/x
  3. Step 3: Cross multiply
    119,243.91x = 164,553.27 × 65,528.97
  4. Step 4: Simplify right side
    119,243.91x = 10,783,006,293.23
  5. Step 5: Solve for x
    x = 10,783,006,293.23/119,243.91
  6. Step 6: Final answer
    x = 90,428.15

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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.