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Finding the Fourth Proportional to 67,849.60, 101,774.40 and 51,009.70

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Solution

The fourth proportional to 67,849.60, 101,774.40 and 51,009.70 is: 76,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,849.60 : 101,774.40 = 51,009.70 : x
  2. Step 2: Convert to fraction form
    67,849.60/101,774.40 = 51,009.70/x
  3. Step 3: Cross multiply
    67,849.60x = 101,774.40 × 51,009.70
  4. Step 4: Simplify right side
    67,849.60x = 5,191,481,611.68
  5. Step 5: Solve for x
    x = 5,191,481,611.68/67,849.60
  6. Step 6: Final answer
    x = 76,514.55

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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.