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Finding the Fourth Proportional to 403,167.60, 604,607.31 and 133,245.79

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Solution

The fourth proportional to 403,167.60, 604,607.31 and 133,245.79 is: 199,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,167.60 : 604,607.31 = 133,245.79 : x
  2. Step 2: Convert to fraction form
    403,167.60/604,607.31 = 133,245.79/x
  3. Step 3: Cross multiply
    403,167.60x = 604,607.31 × 133,245.79
  4. Step 4: Simplify right side
    403,167.60x = 80,561,378,660.72
  5. Step 5: Solve for x
    x = 80,561,378,660.72/403,167.60
  6. Step 6: Final answer
    x = 199,821.06

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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.