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Finding the Fourth Proportional to 221,562.40, 332,343.60 and 133,088.80

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Solution

The fourth proportional to 221,562.40, 332,343.60 and 133,088.80 is: 199,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,562.40 : 332,343.60 = 133,088.80 : x
  2. Step 2: Convert to fraction form
    221,562.40/332,343.60 = 133,088.80/x
  3. Step 3: Cross multiply
    221,562.40x = 332,343.60 × 133,088.80
  4. Step 4: Simplify right side
    221,562.40x = 44,231,210,911.68
  5. Step 5: Solve for x
    x = 44,231,210,911.68/221,562.40
  6. Step 6: Final answer
    x = 199,633.20

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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.