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Finding the Fourth Proportional to 199,744.82, 299,618.36 and 66,624.71

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Solution

The fourth proportional to 199,744.82, 299,618.36 and 66,624.71 is: 99,937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,744.82 : 299,618.36 = 66,624.71 : x
  2. Step 2: Convert to fraction form
    199,744.82/299,618.36 = 66,624.71/x
  3. Step 3: Cross multiply
    199,744.82x = 299,618.36 × 66,624.71
  4. Step 4: Simplify right side
    199,744.82x = 19,961,986,012.55
  5. Step 5: Solve for x
    x = 19,961,986,012.55/199,744.82
  6. Step 6: Final answer
    x = 99,937.44

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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.