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Finding the Fourth Proportional to 218,687.01, 301,786.76 and 123,224.46

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Solution

The fourth proportional to 218,687.01, 301,786.76 and 123,224.46 is: 170,049.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,687.01 : 301,786.76 = 123,224.46 : x
  2. Step 2: Convert to fraction form
    218,687.01/301,786.76 = 123,224.46/x
  3. Step 3: Cross multiply
    218,687.01x = 301,786.76 × 123,224.46
  4. Step 4: Simplify right side
    218,687.01x = 37,187,509,920.03
  5. Step 5: Solve for x
    x = 37,187,509,920.03/218,687.01
  6. Step 6: Final answer
    x = 170,049.01

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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.