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Finding the Fourth Proportional to 206,817.96, 310,243.92 and 88,490.52

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Solution

The fourth proportional to 206,817.96, 310,243.92 and 88,490.52 is: 132,743.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,817.96 : 310,243.92 = 88,490.52 : x
  2. Step 2: Convert to fraction form
    206,817.96/310,243.92 = 88,490.52/x
  3. Step 3: Cross multiply
    206,817.96x = 310,243.92 × 88,490.52
  4. Step 4: Simplify right side
    206,817.96x = 27,453,645,807.64
  5. Step 5: Solve for x
    x = 27,453,645,807.64/206,817.96
  6. Step 6: Final answer
    x = 132,743.05

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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.