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Finding the Fourth Proportional to 403,169.60, 604,610.31 and 133,247.79

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Solution

The fourth proportional to 403,169.60, 604,610.31 and 133,247.79 is: 199,824.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,169.60 : 604,610.31 = 133,247.79 : x
  2. Step 2: Convert to fraction form
    403,169.60/604,610.31 = 133,247.79/x
  3. Step 3: Cross multiply
    403,169.60x = 604,610.31 × 133,247.79
  4. Step 4: Simplify right side
    403,169.60x = 80,562,987,618.71
  5. Step 5: Solve for x
    x = 80,562,987,618.71/403,169.60
  6. Step 6: Final answer
    x = 199,824.06

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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.