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Finding the Fourth Proportional to 443,208.72, 664,715.85 and 127,597.08

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Solution

The fourth proportional to 443,208.72, 664,715.85 and 127,597.08 is: 191,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,208.72 : 664,715.85 = 127,597.08 : x
  2. Step 2: Convert to fraction form
    443,208.72/664,715.85 = 127,597.08/x
  3. Step 3: Cross multiply
    443,208.72x = 664,715.85 × 127,597.08
  4. Step 4: Simplify right side
    443,208.72x = 84,815,801,489.72
  5. Step 5: Solve for x
    x = 84,815,801,489.72/443,208.72
  6. Step 6: Final answer
    x = 191,367.63

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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.