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Finding the Fourth Proportional to 218,617.13, 301,692.26 and 126,754.23

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Solution

The fourth proportional to 218,617.13, 301,692.26 and 126,754.23 is: 174,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,617.13 : 301,692.26 = 126,754.23 : x
  2. Step 2: Convert to fraction form
    218,617.13/301,692.26 = 126,754.23/x
  3. Step 3: Cross multiply
    218,617.13x = 301,692.26 × 126,754.23
  4. Step 4: Simplify right side
    218,617.13x = 38,240,769,479.49
  5. Step 5: Solve for x
    x = 38,240,769,479.49/218,617.13
  6. Step 6: Final answer
    x = 174,921.20

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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.