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Finding the Fourth Proportional to 208,672.27, 313,031.39 and 66,484.46

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Solution

The fourth proportional to 208,672.27, 313,031.39 and 66,484.46 is: 99,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,672.27 : 313,031.39 = 66,484.46 : x
  2. Step 2: Convert to fraction form
    208,672.27/313,031.39 = 66,484.46/x
  3. Step 3: Cross multiply
    208,672.27x = 313,031.39 × 66,484.46
  4. Step 4: Simplify right side
    208,672.27x = 20,811,723,377.36
  5. Step 5: Solve for x
    x = 20,811,723,377.36/208,672.27
  6. Step 6: Final answer
    x = 99,734.02

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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.