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Finding the Fourth Proportional to 167,263.43, 230,821.65 and 90,782.69

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Solution

The fourth proportional to 167,263.43, 230,821.65 and 90,782.69 is: 125,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,263.43 : 230,821.65 = 90,782.69 : x
  2. Step 2: Convert to fraction form
    167,263.43/230,821.65 = 90,782.69/x
  3. Step 3: Cross multiply
    167,263.43x = 230,821.65 × 90,782.69
  4. Step 4: Simplify right side
    167,263.43x = 20,954,609,143.13
  5. Step 5: Solve for x
    x = 20,954,609,143.13/167,263.43
  6. Step 6: Final answer
    x = 125,279.09

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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.