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Finding the Fourth Proportional to 548,820.56, 823,220.76 and 149,455.28

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Solution

The fourth proportional to 548,820.56, 823,220.76 and 149,455.28 is: 224,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,820.56 : 823,220.76 = 149,455.28 : x
  2. Step 2: Convert to fraction form
    548,820.56/823,220.76 = 149,455.28/x
  3. Step 3: Cross multiply
    548,820.56x = 823,220.76 × 149,455.28
  4. Step 4: Simplify right side
    548,820.56x = 123,034,689,187.61
  5. Step 5: Solve for x
    x = 123,034,689,187.61/548,820.56
  6. Step 6: Final answer
    x = 224,180.18

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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.