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Finding the Fourth Proportional to 220,094.80, 330,020.54 and 68,249.77

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Solution

The fourth proportional to 220,094.80, 330,020.54 and 68,249.77 is: 102,336.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,094.80 : 330,020.54 = 68,249.77 : x
  2. Step 2: Convert to fraction form
    220,094.80/330,020.54 = 68,249.77/x
  3. Step 3: Cross multiply
    220,094.80x = 330,020.54 × 68,249.77
  4. Step 4: Simplify right side
    220,094.80x = 22,523,824,300.17
  5. Step 5: Solve for x
    x = 22,523,824,300.17/220,094.80
  6. Step 6: Final answer
    x = 102,336.92

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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.