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Finding the Fourth Proportional to 219,665.55, 329,560.34 and 61,895.37

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Solution

The fourth proportional to 219,665.55, 329,560.34 and 61,895.37 is: 92,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,665.55 : 329,560.34 = 61,895.37 : x
  2. Step 2: Convert to fraction form
    219,665.55/329,560.34 = 61,895.37/x
  3. Step 3: Cross multiply
    219,665.55x = 329,560.34 × 61,895.37
  4. Step 4: Simplify right side
    219,665.55x = 20,398,258,872.15
  5. Step 5: Solve for x
    x = 20,398,258,872.15/219,665.55
  6. Step 6: Final answer
    x = 92,860.53

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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.