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Finding the Fourth Proportional to 219,586.60, 329,383.52 and 61,818.84

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Solution

The fourth proportional to 219,586.60, 329,383.52 and 61,818.84 is: 92,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,586.60 : 329,383.52 = 61,818.84 : x
  2. Step 2: Convert to fraction form
    219,586.60/329,383.52 = 61,818.84/x
  3. Step 3: Cross multiply
    219,586.60x = 329,383.52 × 61,818.84
  4. Step 4: Simplify right side
    219,586.60x = 20,362,107,121.52
  5. Step 5: Solve for x
    x = 20,362,107,121.52/219,586.60
  6. Step 6: Final answer
    x = 92,729.28

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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.