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Finding the Fourth Proportional to 166,668.60, 250,082.49 and 77,909.22

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Solution

The fourth proportional to 166,668.60, 250,082.49 and 77,909.22 is: 116,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,668.60 : 250,082.49 = 77,909.22 : x
  2. Step 2: Convert to fraction form
    166,668.60/250,082.49 = 77,909.22/x
  3. Step 3: Cross multiply
    166,668.60x = 250,082.49 × 77,909.22
  4. Step 4: Simplify right side
    166,668.60x = 19,483,731,731.56
  5. Step 5: Solve for x
    x = 19,483,731,731.56/166,668.60
  6. Step 6: Final answer
    x = 116,901.03

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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.