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Finding the Fourth Proportional to 311,504.46, 429,876.33 and 168,264.49

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Solution

The fourth proportional to 311,504.46, 429,876.33 and 168,264.49 is: 232,205.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,504.46 : 429,876.33 = 168,264.49 : x
  2. Step 2: Convert to fraction form
    311,504.46/429,876.33 = 168,264.49/x
  3. Step 3: Cross multiply
    311,504.46x = 429,876.33 × 168,264.49
  4. Step 4: Simplify right side
    311,504.46x = 72,332,921,430.52
  5. Step 5: Solve for x
    x = 72,332,921,430.52/311,504.46
  6. Step 6: Final answer
    x = 232,205.09

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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.