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Finding the Fourth Proportional to 167,262.72, 230,820.57 and 90,781.94

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Solution

The fourth proportional to 167,262.72, 230,820.57 and 90,781.94 is: 125,277.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,262.72 : 230,820.57 = 90,781.94 : x
  2. Step 2: Convert to fraction form
    167,262.72/230,820.57 = 90,781.94/x
  3. Step 3: Cross multiply
    167,262.72x = 230,820.57 × 90,781.94
  4. Step 4: Simplify right side
    167,262.72x = 20,954,337,982.40
  5. Step 5: Solve for x
    x = 20,954,337,982.40/167,262.72
  6. Step 6: Final answer
    x = 125,277.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.