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Finding the Fourth Proportional to 220,858.10, 330,631.05 and 220,858.10

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Solution

The fourth proportional to 220,858.10, 330,631.05 and 220,858.10 is: 330,631.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,858.10 : 330,631.05 = 220,858.10 : x
  2. Step 2: Convert to fraction form
    220,858.10/330,631.05 = 220,858.10/x
  3. Step 3: Cross multiply
    220,858.10x = 330,631.05 × 220,858.10
  4. Step 4: Simplify right side
    220,858.10x = 73,022,545,504.01
  5. Step 5: Solve for x
    x = 73,022,545,504.01/220,858.10
  6. Step 6: Final answer
    x = 330,631.05

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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.