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Finding the Fourth Proportional to 356,280.21, 534,446.24 and 119,620.89

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Solution

The fourth proportional to 356,280.21, 534,446.24 and 119,620.89 is: 179,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,280.21 : 534,446.24 = 119,620.89 : x
  2. Step 2: Convert to fraction form
    356,280.21/534,446.24 = 119,620.89/x
  3. Step 3: Cross multiply
    356,280.21x = 534,446.24 × 119,620.89
  4. Step 4: Simplify right side
    356,280.21x = 63,930,934,287.85
  5. Step 5: Solve for x
    x = 63,930,934,287.85/356,280.21
  6. Step 6: Final answer
    x = 179,440.04

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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.