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Finding the Fourth Proportional to 206,674.60, 310,098.30 and 66,476.20

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Solution

The fourth proportional to 206,674.60, 310,098.30 and 66,476.20 is: 99,742.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,674.60 : 310,098.30 = 66,476.20 : x
  2. Step 2: Convert to fraction form
    206,674.60/310,098.30 = 66,476.20/x
  3. Step 3: Cross multiply
    206,674.60x = 310,098.30 × 66,476.20
  4. Step 4: Simplify right side
    206,674.60x = 20,614,156,610.46
  5. Step 5: Solve for x
    x = 20,614,156,610.46/206,674.60
  6. Step 6: Final answer
    x = 99,742.09

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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.