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Finding the Fourth Proportional to 368,439.30, 552,658.89 and 102,199.83

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Solution

The fourth proportional to 368,439.30, 552,658.89 and 102,199.83 is: 153,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,439.30 : 552,658.89 = 102,199.83 : x
  2. Step 2: Convert to fraction form
    368,439.30/552,658.89 = 102,199.83/x
  3. Step 3: Cross multiply
    368,439.30x = 552,658.89 × 102,199.83
  4. Step 4: Simplify right side
    368,439.30x = 56,481,644,605.99
  5. Step 5: Solve for x
    x = 56,481,644,605.99/368,439.30
  6. Step 6: Final answer
    x = 153,299.73

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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.