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Finding the Fourth Proportional to 187,321.80, 280,982.70 and 62,662.80

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Solution

The fourth proportional to 187,321.80, 280,982.70 and 62,662.80 is: 93,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,321.80 : 280,982.70 = 62,662.80 : x
  2. Step 2: Convert to fraction form
    187,321.80/280,982.70 = 62,662.80/x
  3. Step 3: Cross multiply
    187,321.80x = 280,982.70 × 62,662.80
  4. Step 4: Simplify right side
    187,321.80x = 17,607,162,733.56
  5. Step 5: Solve for x
    x = 17,607,162,733.56/187,321.80
  6. Step 6: Final answer
    x = 93,994.20

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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.