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Finding the Fourth Proportional to 218,652.01, 328,004.28 and 206,694.58

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Solution

The fourth proportional to 218,652.01, 328,004.28 and 206,694.58 is: 310,066.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,652.01 : 328,004.28 = 206,694.58 : x
  2. Step 2: Convert to fraction form
    218,652.01/328,004.28 = 206,694.58/x
  3. Step 3: Cross multiply
    218,652.01x = 328,004.28 × 206,694.58
  4. Step 4: Simplify right side
    218,652.01x = 67,796,706,892.80
  5. Step 5: Solve for x
    x = 67,796,706,892.80/218,652.01
  6. Step 6: Final answer
    x = 310,066.71

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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.