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Finding the Fourth Proportional to 220,439.64, 330,662.16 and 62,667.84

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Solution

The fourth proportional to 220,439.64, 330,662.16 and 62,667.84 is: 94,002.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,439.64 : 330,662.16 = 62,667.84 : x
  2. Step 2: Convert to fraction form
    220,439.64/330,662.16 = 62,667.84/x
  3. Step 3: Cross multiply
    220,439.64x = 330,662.16 × 62,667.84
  4. Step 4: Simplify right side
    220,439.64x = 20,721,883,336.93
  5. Step 5: Solve for x
    x = 20,721,883,336.93/220,439.64
  6. Step 6: Final answer
    x = 94,002.53

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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.