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Finding the Fourth Proportional to 220,586.40, 330,620.40 and 94,226.40

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Solution

The fourth proportional to 220,586.40, 330,620.40 and 94,226.40 is: 141,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,586.40 : 330,620.40 = 94,226.40 : x
  2. Step 2: Convert to fraction form
    220,586.40/330,620.40 = 94,226.40/x
  3. Step 3: Cross multiply
    220,586.40x = 330,620.40 × 94,226.40
  4. Step 4: Simplify right side
    220,586.40x = 31,153,170,058.56
  5. Step 5: Solve for x
    x = 31,153,170,058.56/220,586.40
  6. Step 6: Final answer
    x = 141,228.88

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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.