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Finding the Fourth Proportional to 207,946.38, 311,887.02 and 67,704.06

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Solution

The fourth proportional to 207,946.38, 311,887.02 and 67,704.06 is: 101,545.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,946.38 : 311,887.02 = 67,704.06 : x
  2. Step 2: Convert to fraction form
    207,946.38/311,887.02 = 67,704.06/x
  3. Step 3: Cross multiply
    207,946.38x = 311,887.02 × 67,704.06
  4. Step 4: Simplify right side
    207,946.38x = 21,116,017,515.30
  5. Step 5: Solve for x
    x = 21,116,017,515.30/207,946.38
  6. Step 6: Final answer
    x = 101,545.49

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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.