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Finding the Fourth Proportional to 221,632.56, 332,435.16 and 88,416.92

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Solution

The fourth proportional to 221,632.56, 332,435.16 and 88,416.92 is: 132,619.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,632.56 : 332,435.16 = 88,416.92 : x
  2. Step 2: Convert to fraction form
    221,632.56/332,435.16 = 88,416.92/x
  3. Step 3: Cross multiply
    221,632.56x = 332,435.16 × 88,416.92
  4. Step 4: Simplify right side
    221,632.56x = 29,392,893,778.00
  5. Step 5: Solve for x
    x = 29,392,893,778.00/221,632.56
  6. Step 6: Final answer
    x = 132,619.93

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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.