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Finding the Fourth Proportional to 236,178.72, 354,234.92 and 67,713.40

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Solution

The fourth proportional to 236,178.72, 354,234.92 and 67,713.40 is: 101,560.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,178.72 : 354,234.92 = 67,713.40 : x
  2. Step 2: Convert to fraction form
    236,178.72/354,234.92 = 67,713.40/x
  3. Step 3: Cross multiply
    236,178.72x = 354,234.92 × 67,713.40
  4. Step 4: Simplify right side
    236,178.72x = 23,986,450,831.93
  5. Step 5: Solve for x
    x = 23,986,450,831.93/236,178.72
  6. Step 6: Final answer
    x = 101,560.59

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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.