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Finding the Fourth Proportional to 228,757.64, 343,182.26 and 79,003.40

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Solution

The fourth proportional to 228,757.64, 343,182.26 and 79,003.40 is: 118,520.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,757.64 : 343,182.26 = 79,003.40 : x
  2. Step 2: Convert to fraction form
    228,757.64/343,182.26 = 79,003.40/x
  3. Step 3: Cross multiply
    228,757.64x = 343,182.26 × 79,003.40
  4. Step 4: Simplify right side
    228,757.64x = 27,112,565,359.68
  5. Step 5: Solve for x
    x = 27,112,565,359.68/228,757.64
  6. Step 6: Final answer
    x = 118,520.92

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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.