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Finding the Fourth Proportional to 220,717.69, 331,079.66 and 62,946.15

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Solution

The fourth proportional to 220,717.69, 331,079.66 and 62,946.15 is: 94,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,717.69 : 331,079.66 = 62,946.15 : x
  2. Step 2: Convert to fraction form
    220,717.69/331,079.66 = 62,946.15/x
  3. Step 3: Cross multiply
    220,717.69x = 331,079.66 × 62,946.15
  4. Step 4: Simplify right side
    220,717.69x = 20,840,188,620.08
  5. Step 5: Solve for x
    x = 20,840,188,620.08/220,717.69
  6. Step 6: Final answer
    x = 94,420.11

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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.