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Finding the Fourth Proportional to 147,234.10, 220,851.15 and 100,578.10

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Solution

The fourth proportional to 147,234.10, 220,851.15 and 100,578.10 is: 150,867.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,234.10 : 220,851.15 = 100,578.10 : x
  2. Step 2: Convert to fraction form
    147,234.10/220,851.15 = 100,578.10/x
  3. Step 3: Cross multiply
    147,234.10x = 220,851.15 × 100,578.10
  4. Step 4: Simplify right side
    147,234.10x = 22,212,789,049.82
  5. Step 5: Solve for x
    x = 22,212,789,049.82/147,234.10
  6. Step 6: Final answer
    x = 150,867.15

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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.