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Finding the Fourth Proportional to 444,731.40, 667,116.54 and 145,209.64

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Solution

The fourth proportional to 444,731.40, 667,116.54 and 145,209.64 is: 217,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,731.40 : 667,116.54 = 145,209.64 : x
  2. Step 2: Convert to fraction form
    444,731.40/667,116.54 = 145,209.64/x
  3. Step 3: Cross multiply
    444,731.40x = 667,116.54 × 145,209.64
  4. Step 4: Simplify right side
    444,731.40x = 96,871,752,611.45
  5. Step 5: Solve for x
    x = 96,871,752,611.45/444,731.40
  6. Step 6: Final answer
    x = 217,820.81

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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.