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Finding the Fourth Proportional to 221,818.80, 332,771.40 and 64,052.40

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Solution

The fourth proportional to 221,818.80, 332,771.40 and 64,052.40 is: 96,091.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,818.80 : 332,771.40 = 64,052.40 : x
  2. Step 2: Convert to fraction form
    221,818.80/332,771.40 = 64,052.40/x
  3. Step 3: Cross multiply
    221,818.80x = 332,771.40 × 64,052.40
  4. Step 4: Simplify right side
    221,818.80x = 21,314,806,821.36
  5. Step 5: Solve for x
    x = 21,314,806,821.36/221,818.80
  6. Step 6: Final answer
    x = 96,091.07

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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.