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Finding the Fourth Proportional to 219,297.60, 328,956.12 and 61,522.56

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Solution

The fourth proportional to 219,297.60, 328,956.12 and 61,522.56 is: 92,286.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,297.60 : 328,956.12 = 61,522.56 : x
  2. Step 2: Convert to fraction form
    219,297.60/328,956.12 = 61,522.56/x
  3. Step 3: Cross multiply
    219,297.60x = 328,956.12 × 61,522.56
  4. Step 4: Simplify right side
    219,297.60x = 20,238,222,630.07
  5. Step 5: Solve for x
    x = 20,238,222,630.07/219,297.60
  6. Step 6: Final answer
    x = 92,286.57

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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.