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Finding the Fourth Proportional to 187,099.62, 280,645.46 and 60,739.67

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Solution

The fourth proportional to 187,099.62, 280,645.46 and 60,739.67 is: 91,108.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,099.62 : 280,645.46 = 60,739.67 : x
  2. Step 2: Convert to fraction form
    187,099.62/280,645.46 = 60,739.67/x
  3. Step 3: Cross multiply
    187,099.62x = 280,645.46 × 60,739.67
  4. Step 4: Simplify right side
    187,099.62x = 17,046,310,920.47
  5. Step 5: Solve for x
    x = 17,046,310,920.47/187,099.62
  6. Step 6: Final answer
    x = 91,108.21

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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.