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Finding the Fourth Proportional to 403,166.60, 604,605.81 and 133,244.79

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Solution

The fourth proportional to 403,166.60, 604,605.81 and 133,244.79 is: 199,819.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,166.60 : 604,605.81 = 133,244.79 : x
  2. Step 2: Convert to fraction form
    403,166.60/604,605.81 = 133,244.79/x
  3. Step 3: Cross multiply
    403,166.60x = 604,605.81 × 133,244.79
  4. Step 4: Simplify right side
    403,166.60x = 80,560,572,418.63
  5. Step 5: Solve for x
    x = 80,560,572,418.63/403,166.60
  6. Step 6: Final answer
    x = 199,819.56

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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.