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Finding the Fourth Proportional to 144,797.70, 217,207.35 and 51,291.30

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Solution

The fourth proportional to 144,797.70, 217,207.35 and 51,291.30 is: 76,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,797.70 : 217,207.35 = 51,291.30 : x
  2. Step 2: Convert to fraction form
    144,797.70/217,207.35 = 51,291.30/x
  3. Step 3: Cross multiply
    144,797.70x = 217,207.35 × 51,291.30
  4. Step 4: Simplify right side
    144,797.70x = 11,140,847,351.06
  5. Step 5: Solve for x
    x = 11,140,847,351.06/144,797.70
  6. Step 6: Final answer
    x = 76,940.78

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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.