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Finding the Fourth Proportional to 221,927.52, 332,841.60 and 64,120.80

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Solution

The fourth proportional to 221,927.52, 332,841.60 and 64,120.80 is: 96,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,927.52 : 332,841.60 = 64,120.80 : x
  2. Step 2: Convert to fraction form
    221,927.52/332,841.60 = 64,120.80/x
  3. Step 3: Cross multiply
    221,927.52x = 332,841.60 × 64,120.80
  4. Step 4: Simplify right side
    221,927.52x = 21,342,069,665.28
  5. Step 5: Solve for x
    x = 21,342,069,665.28/221,927.52
  6. Step 6: Final answer
    x = 96,166.85

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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.