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Finding the Fourth Proportional to 114,450.20, 171,748.20 and 67,065.20

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Solution

The fourth proportional to 114,450.20, 171,748.20 and 67,065.20 is: 100,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,450.20 : 171,748.20 = 67,065.20 : x
  2. Step 2: Convert to fraction form
    114,450.20/171,748.20 = 67,065.20/x
  3. Step 3: Cross multiply
    114,450.20x = 171,748.20 × 67,065.20
  4. Step 4: Simplify right side
    114,450.20x = 11,518,327,382.64
  5. Step 5: Solve for x
    x = 11,518,327,382.64/114,450.20
  6. Step 6: Final answer
    x = 100,640.52

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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.