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Finding the Fourth Proportional to 221,671.50, 332,554.01 and 71,900.16

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Solution

The fourth proportional to 221,671.50, 332,554.01 and 71,900.16 is: 107,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,671.50 : 332,554.01 = 71,900.16 : x
  2. Step 2: Convert to fraction form
    221,671.50/332,554.01 = 71,900.16/x
  3. Step 3: Cross multiply
    221,671.50x = 332,554.01 × 71,900.16
  4. Step 4: Simplify right side
    221,671.50x = 23,910,684,775.00
  5. Step 5: Solve for x
    x = 23,910,684,775.00/221,671.50
  6. Step 6: Final answer
    x = 107,865.40

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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.