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Finding the Fourth Proportional to 339,008.50, 467,831.73 and 188,129.78

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Solution

The fourth proportional to 339,008.50, 467,831.73 and 188,129.78 is: 259,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,008.50 : 467,831.73 = 188,129.78 : x
  2. Step 2: Convert to fraction form
    339,008.50/467,831.73 = 188,129.78/x
  3. Step 3: Cross multiply
    339,008.50x = 467,831.73 × 188,129.78
  4. Step 4: Simplify right side
    339,008.50x = 88,013,080,441.92
  5. Step 5: Solve for x
    x = 88,013,080,441.92/339,008.50
  6. Step 6: Final answer
    x = 259,619.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.