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Finding the Fourth Proportional to 167,378.23, 230,981.23 and 90,896.79

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Solution

The fourth proportional to 167,378.23, 230,981.23 and 90,896.79 is: 125,437.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,378.23 : 230,981.23 = 90,896.79 : x
  2. Step 2: Convert to fraction form
    167,378.23/230,981.23 = 90,896.79/x
  3. Step 3: Cross multiply
    167,378.23x = 230,981.23 × 90,896.79
  4. Step 4: Simplify right side
    167,378.23x = 20,995,452,357.25
  5. Step 5: Solve for x
    x = 20,995,452,357.25/167,378.23
  6. Step 6: Final answer
    x = 125,437.18

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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.