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Finding the Fourth Proportional to 103,640.56, 155,510.01 and 44,493.10

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Solution

The fourth proportional to 103,640.56, 155,510.01 and 44,493.10 is: 66,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.56 : 155,510.01 = 44,493.10 : x
  2. Step 2: Convert to fraction form
    103,640.56/155,510.01 = 44,493.10/x
  3. Step 3: Cross multiply
    103,640.56x = 155,510.01 × 44,493.10
  4. Step 4: Simplify right side
    103,640.56x = 6,919,122,425.93
  5. Step 5: Solve for x
    x = 6,919,122,425.93/103,640.56
  6. Step 6: Final answer
    x = 66,760.76

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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.