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Finding the Fourth Proportional to 144,908.40, 217,427.40 and 51,481.20

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Solution

The fourth proportional to 144,908.40, 217,427.40 and 51,481.20 is: 77,244.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,908.40 : 217,427.40 = 51,481.20 : x
  2. Step 2: Convert to fraction form
    144,908.40/217,427.40 = 51,481.20/x
  3. Step 3: Cross multiply
    144,908.40x = 217,427.40 × 51,481.20
  4. Step 4: Simplify right side
    144,908.40x = 11,193,423,464.88
  5. Step 5: Solve for x
    x = 11,193,423,464.88/144,908.40
  6. Step 6: Final answer
    x = 77,244.82

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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.