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Finding the Fourth Proportional to 99,668.69, 149,528.29 and 33,109.17

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Solution

The fourth proportional to 99,668.69, 149,528.29 and 33,109.17 is: 49,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,668.69 : 149,528.29 = 33,109.17 : x
  2. Step 2: Convert to fraction form
    99,668.69/149,528.29 = 33,109.17/x
  3. Step 3: Cross multiply
    99,668.69x = 149,528.29 × 33,109.17
  4. Step 4: Simplify right side
    99,668.69x = 4,950,757,573.42
  5. Step 5: Solve for x
    x = 4,950,757,573.42/99,668.69
  6. Step 6: Final answer
    x = 49,672.14

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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.