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Finding the Fourth Proportional to 146,820.84, 220,359.78 and 75,791.40

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Solution

The fourth proportional to 146,820.84, 220,359.78 and 75,791.40 is: 113,753.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,820.84 : 220,359.78 = 75,791.40 : x
  2. Step 2: Convert to fraction form
    146,820.84/220,359.78 = 75,791.40/x
  3. Step 3: Cross multiply
    146,820.84x = 220,359.78 × 75,791.40
  4. Step 4: Simplify right side
    146,820.84x = 16,701,376,229.89
  5. Step 5: Solve for x
    x = 16,701,376,229.89/146,820.84
  6. Step 6: Final answer
    x = 113,753.44

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1.5x scale

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.