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Finding the Fourth Proportional to 220,614.70, 330,922.05 and 185,622.70

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Solution

The fourth proportional to 220,614.70, 330,922.05 and 185,622.70 is: 278,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,614.70 : 330,922.05 = 185,622.70 : x
  2. Step 2: Convert to fraction form
    220,614.70/330,922.05 = 185,622.70/x
  3. Step 3: Cross multiply
    220,614.70x = 330,922.05 × 185,622.70
  4. Step 4: Simplify right side
    220,614.70x = 61,426,644,410.54
  5. Step 5: Solve for x
    x = 61,426,644,410.54/220,614.70
  6. Step 6: Final answer
    x = 278,434.05

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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.