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Finding the Fourth Proportional to 114,645.80, 171,911.10 and 52,245.80

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Solution

The fourth proportional to 114,645.80, 171,911.10 and 52,245.80 is: 78,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,645.80 : 171,911.10 = 52,245.80 : x
  2. Step 2: Convert to fraction form
    114,645.80/171,911.10 = 52,245.80/x
  3. Step 3: Cross multiply
    114,645.80x = 171,911.10 × 52,245.80
  4. Step 4: Simplify right side
    114,645.80x = 8,981,632,948.38
  5. Step 5: Solve for x
    x = 8,981,632,948.38/114,645.80
  6. Step 6: Final answer
    x = 78,342.45

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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.