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Finding the Fourth Proportional to 219,640.05, 329,458.46 and 61,865.01

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Solution

The fourth proportional to 219,640.05, 329,458.46 and 61,865.01 is: 92,797.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,640.05 : 329,458.46 = 61,865.01 : x
  2. Step 2: Convert to fraction form
    219,640.05/329,458.46 = 61,865.01/x
  3. Step 3: Cross multiply
    219,640.05x = 329,458.46 × 61,865.01
  4. Step 4: Simplify right side
    219,640.05x = 20,381,950,613.16
  5. Step 5: Solve for x
    x = 20,381,950,613.16/219,640.05
  6. Step 6: Final answer
    x = 92,797.06

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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.