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Finding the Fourth Proportional to 444,636.66, 667,019.10 and 145,043.12

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Solution

The fourth proportional to 444,636.66, 667,019.10 and 145,043.12 is: 217,585.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,636.66 : 667,019.10 = 145,043.12 : x
  2. Step 2: Convert to fraction form
    444,636.66/667,019.10 = 145,043.12/x
  3. Step 3: Cross multiply
    444,636.66x = 667,019.10 × 145,043.12
  4. Step 4: Simplify right side
    444,636.66x = 96,746,531,363.59
  5. Step 5: Solve for x
    x = 96,746,531,363.59/444,636.66
  6. Step 6: Final answer
    x = 217,585.59

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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.