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Finding the Fourth Proportional to 219,861.30, 328,807.80 and 184,431.90

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Solution

The fourth proportional to 219,861.30, 328,807.80 and 184,431.90 is: 275,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,861.30 : 328,807.80 = 184,431.90 : x
  2. Step 2: Convert to fraction form
    219,861.30/328,807.80 = 184,431.90/x
  3. Step 3: Cross multiply
    219,861.30x = 328,807.80 × 184,431.90
  4. Step 4: Simplify right side
    219,861.30x = 60,642,647,288.82
  5. Step 5: Solve for x
    x = 60,642,647,288.82/219,861.30
  6. Step 6: Final answer
    x = 275,822.29

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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.