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Finding the Fourth Proportional to 221,491.10, 332,236.65 and 162,004.70

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Solution

The fourth proportional to 221,491.10, 332,236.65 and 162,004.70 is: 243,007.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,491.10 : 332,236.65 = 162,004.70 : x
  2. Step 2: Convert to fraction form
    221,491.10/332,236.65 = 162,004.70/x
  3. Step 3: Cross multiply
    221,491.10x = 332,236.65 × 162,004.70
  4. Step 4: Simplify right side
    221,491.10x = 53,823,898,812.26
  5. Step 5: Solve for x
    x = 53,823,898,812.26/221,491.10
  6. Step 6: Final answer
    x = 243,007.05

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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.