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Finding the Fourth Proportional to 220,511.63, 304,477.46 and 169,443.87

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Solution

The fourth proportional to 220,511.63, 304,477.46 and 169,443.87 is: 233,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,511.63 : 304,477.46 = 169,443.87 : x
  2. Step 2: Convert to fraction form
    220,511.63/304,477.46 = 169,443.87/x
  3. Step 3: Cross multiply
    220,511.63x = 304,477.46 × 169,443.87
  4. Step 4: Simplify right side
    220,511.63x = 51,591,836,780.56
  5. Step 5: Solve for x
    x = 51,591,836,780.56/220,511.63
  6. Step 6: Final answer
    x = 233,964.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.