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Finding the Fourth Proportional to 443,141.82, 664,573.30 and 143,552.89

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Solution

The fourth proportional to 443,141.82, 664,573.30 and 143,552.89 is: 215,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,141.82 : 664,573.30 = 143,552.89 : x
  2. Step 2: Convert to fraction form
    443,141.82/664,573.30 = 143,552.89/x
  3. Step 3: Cross multiply
    443,141.82x = 664,573.30 × 143,552.89
  4. Step 4: Simplify right side
    443,141.82x = 95,401,415,811.52
  5. Step 5: Solve for x
    x = 95,401,415,811.52/443,141.82
  6. Step 6: Final answer
    x = 215,284.16

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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.