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Finding the Fourth Proportional to 274,665.30, 411,871.05 and 124,899.54

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Solution

The fourth proportional to 274,665.30, 411,871.05 and 124,899.54 is: 187,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,665.30 : 411,871.05 = 124,899.54 : x
  2. Step 2: Convert to fraction form
    274,665.30/411,871.05 = 124,899.54/x
  3. Step 3: Cross multiply
    274,665.30x = 411,871.05 × 124,899.54
  4. Step 4: Simplify right side
    274,665.30x = 51,442,504,684.32
  5. Step 5: Solve for x
    x = 51,442,504,684.32/274,665.30
  6. Step 6: Final answer
    x = 187,291.60

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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.