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Finding the Fourth Proportional to 206,574.66, 309,993.06 and 88,246.86

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Solution

The fourth proportional to 206,574.66, 309,993.06 and 88,246.86 is: 132,426.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,574.66 : 309,993.06 = 88,246.86 : x
  2. Step 2: Convert to fraction form
    206,574.66/309,993.06 = 88,246.86/x
  3. Step 3: Cross multiply
    206,574.66x = 309,993.06 × 88,246.86
  4. Step 4: Simplify right side
    206,574.66x = 27,355,914,166.79
  5. Step 5: Solve for x
    x = 27,355,914,166.79/206,574.66
  6. Step 6: Final answer
    x = 132,426.28

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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.