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Finding the Fourth Proportional to 206,683.20, 310,025.03 and 82,024.20

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Solution

The fourth proportional to 206,683.20, 310,025.03 and 82,024.20 is: 123,036.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,683.20 : 310,025.03 = 82,024.20 : x
  2. Step 2: Convert to fraction form
    206,683.20/310,025.03 = 82,024.20/x
  3. Step 3: Cross multiply
    206,683.20x = 310,025.03 × 82,024.20
  4. Step 4: Simplify right side
    206,683.20x = 25,429,554,655.61
  5. Step 5: Solve for x
    x = 25,429,554,655.61/206,683.20
  6. Step 6: Final answer
    x = 123,036.39

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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.