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Finding the Fourth Proportional to 304,940.59, 420,831.41 and 168,974.21

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Solution

The fourth proportional to 304,940.59, 420,831.41 and 168,974.21 is: 233,191.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,940.59 : 420,831.41 = 168,974.21 : x
  2. Step 2: Convert to fraction form
    304,940.59/420,831.41 = 168,974.21/x
  3. Step 3: Cross multiply
    304,940.59x = 420,831.41 × 168,974.21
  4. Step 4: Simplify right side
    304,940.59x = 71,109,655,255.14
  5. Step 5: Solve for x
    x = 71,109,655,255.14/304,940.59
  6. Step 6: Final answer
    x = 233,191.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.