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Finding the Fourth Proportional to 167,396.67, 250,881.30 and 78,454.22

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Solution

The fourth proportional to 167,396.67, 250,881.30 and 78,454.22 is: 117,581.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,396.67 : 250,881.30 = 78,454.22 : x
  2. Step 2: Convert to fraction form
    167,396.67/250,881.30 = 78,454.22/x
  3. Step 3: Cross multiply
    167,396.67x = 250,881.30 × 78,454.22
  4. Step 4: Simplify right side
    167,396.67x = 19,682,695,449.68
  5. Step 5: Solve for x
    x = 19,682,695,449.68/167,396.67
  6. Step 6: Final answer
    x = 117,581.16

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1.5x scale

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.