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Finding the Fourth Proportional to 403,703.73, 605,560.22 and 172,861.62

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Solution

The fourth proportional to 403,703.73, 605,560.22 and 172,861.62 is: 259,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,703.73 : 605,560.22 = 172,861.62 : x
  2. Step 2: Convert to fraction form
    403,703.73/605,560.22 = 172,861.62/x
  3. Step 3: Cross multiply
    403,703.73x = 605,560.22 × 172,861.62
  4. Step 4: Simplify right side
    403,703.73x = 104,678,119,772.45
  5. Step 5: Solve for x
    x = 104,678,119,772.45/403,703.73
  6. Step 6: Final answer
    x = 259,294.41

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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.