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Finding the Fourth Proportional to 222,716.80, 333,637.80 and 206,970.40

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Solution

The fourth proportional to 222,716.80, 333,637.80 and 206,970.40 is: 310,049.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,716.80 : 333,637.80 = 206,970.40 : x
  2. Step 2: Convert to fraction form
    222,716.80/333,637.80 = 206,970.40/x
  3. Step 3: Cross multiply
    222,716.80x = 333,637.80 × 206,970.40
  4. Step 4: Simplify right side
    222,716.80x = 69,053,148,921.12
  5. Step 5: Solve for x
    x = 69,053,148,921.12/222,716.80
  6. Step 6: Final answer
    x = 310,049.12

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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.