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Finding the Fourth Proportional to 221,916.10, 332,866.86 and 88,760.60

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Solution

The fourth proportional to 221,916.10, 332,866.86 and 88,760.60 is: 133,137.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,916.10 : 332,866.86 = 88,760.60 : x
  2. Step 2: Convert to fraction form
    221,916.10/332,866.86 = 88,760.60/x
  3. Step 3: Cross multiply
    221,916.10x = 332,866.86 × 88,760.60
  4. Step 4: Simplify right side
    221,916.10x = 29,545,462,213.72
  5. Step 5: Solve for x
    x = 29,545,462,213.72/221,916.10
  6. Step 6: Final answer
    x = 133,137.98

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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.