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Finding the Fourth Proportional to 219,446.92, 329,119.26 and 61,690.60

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Solution

The fourth proportional to 219,446.92, 329,119.26 and 61,690.60 is: 92,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,446.92 : 329,119.26 = 61,690.60 : x
  2. Step 2: Convert to fraction form
    219,446.92/329,119.26 = 61,690.60/x
  3. Step 3: Cross multiply
    219,446.92x = 329,119.26 × 61,690.60
  4. Step 4: Simplify right side
    219,446.92x = 20,303,564,620.96
  5. Step 5: Solve for x
    x = 20,303,564,620.96/219,446.92
  6. Step 6: Final answer
    x = 92,521.53

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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.