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Finding the Fourth Proportional to 468,761.50, 703,261.32 and 136,337.50

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Solution

The fourth proportional to 468,761.50, 703,261.32 and 136,337.50 is: 204,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,761.50 : 703,261.32 = 136,337.50 : x
  2. Step 2: Convert to fraction form
    468,761.50/703,261.32 = 136,337.50/x
  3. Step 3: Cross multiply
    468,761.50x = 703,261.32 × 136,337.50
  4. Step 4: Simplify right side
    468,761.50x = 95,880,890,215.50
  5. Step 5: Solve for x
    x = 95,880,890,215.50/468,761.50
  6. Step 6: Final answer
    x = 204,540.88

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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.