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Finding the Fourth Proportional to 219,468.20, 329,311.65 and 124,771.10

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Solution

The fourth proportional to 219,468.20, 329,311.65 and 124,771.10 is: 187,218.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,468.20 : 329,311.65 = 124,771.10 : x
  2. Step 2: Convert to fraction form
    219,468.20/329,311.65 = 124,771.10/x
  3. Step 3: Cross multiply
    219,468.20x = 329,311.65 × 124,771.10
  4. Step 4: Simplify right side
    219,468.20x = 41,088,576,813.32
  5. Step 5: Solve for x
    x = 41,088,576,813.32/219,468.20
  6. Step 6: Final answer
    x = 187,218.82

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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.