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Finding the Fourth Proportional to 218,958.80, 301,750.26 and 158,426.96

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Solution

The fourth proportional to 218,958.80, 301,750.26 and 158,426.96 is: 218,330.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,958.80 : 301,750.26 = 158,426.96 : x
  2. Step 2: Convert to fraction form
    218,958.80/301,750.26 = 158,426.96/x
  3. Step 3: Cross multiply
    218,958.80x = 301,750.26 × 158,426.96
  4. Step 4: Simplify right side
    218,958.80x = 47,805,376,371.01
  5. Step 5: Solve for x
    x = 47,805,376,371.01/218,958.80
  6. Step 6: Final answer
    x = 218,330.46

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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.