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Finding the Fourth Proportional to 220,218.30, 330,327.45 and 158,010.30

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Solution

The fourth proportional to 220,218.30, 330,327.45 and 158,010.30 is: 237,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,218.30 : 330,327.45 = 158,010.30 : x
  2. Step 2: Convert to fraction form
    220,218.30/330,327.45 = 158,010.30/x
  3. Step 3: Cross multiply
    220,218.30x = 330,327.45 × 158,010.30
  4. Step 4: Simplify right side
    220,218.30x = 52,195,139,472.74
  5. Step 5: Solve for x
    x = 52,195,139,472.74/220,218.30
  6. Step 6: Final answer
    x = 237,015.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.