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Finding the Fourth Proportional to 208,450.50, 312,693.03 and 60,706.50

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Solution

The fourth proportional to 208,450.50, 312,693.03 and 60,706.50 is: 91,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,450.50 : 312,693.03 = 60,706.50 : x
  2. Step 2: Convert to fraction form
    208,450.50/312,693.03 = 60,706.50/x
  3. Step 3: Cross multiply
    208,450.50x = 312,693.03 × 60,706.50
  4. Step 4: Simplify right side
    208,450.50x = 18,982,499,425.70
  5. Step 5: Solve for x
    x = 18,982,499,425.70/208,450.50
  6. Step 6: Final answer
    x = 91,064.78

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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.