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Finding the Fourth Proportional to 223,561.11, 336,019.15 and 147,917.68

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Solution

The fourth proportional to 223,561.11, 336,019.15 and 147,917.68 is: 222,324.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,561.11 : 336,019.15 = 147,917.68 : x
  2. Step 2: Convert to fraction form
    223,561.11/336,019.15 = 147,917.68/x
  3. Step 3: Cross multiply
    223,561.11x = 336,019.15 × 147,917.68
  4. Step 4: Simplify right side
    223,561.11x = 49,703,172,448.42
  5. Step 5: Solve for x
    x = 49,703,172,448.42/223,561.11
  6. Step 6: Final answer
    x = 222,324.77

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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.