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Finding the Fourth Proportional to 222,261.75, 333,421.92 and 72,449.55

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Solution

The fourth proportional to 222,261.75, 333,421.92 and 72,449.55 is: 108,683.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,261.75 : 333,421.92 = 72,449.55 : x
  2. Step 2: Convert to fraction form
    222,261.75/333,421.92 = 72,449.55/x
  3. Step 3: Cross multiply
    222,261.75x = 333,421.92 × 72,449.55
  4. Step 4: Simplify right side
    222,261.75x = 24,156,268,064.14
  5. Step 5: Solve for x
    x = 24,156,268,064.14/222,261.75
  6. Step 6: Final answer
    x = 108,683.87

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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.