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Finding the Fourth Proportional to 187,286.01, 280,892.36 and 155,897.70

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Solution

The fourth proportional to 187,286.01, 280,892.36 and 155,897.70 is: 233,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,286.01 : 280,892.36 = 155,897.70 : x
  2. Step 2: Convert to fraction form
    187,286.01/280,892.36 = 155,897.70/x
  3. Step 3: Cross multiply
    187,286.01x = 280,892.36 × 155,897.70
  4. Step 4: Simplify right side
    187,286.01x = 43,790,470,687.62
  5. Step 5: Solve for x
    x = 43,790,470,687.62/187,286.01
  6. Step 6: Final answer
    x = 233,816.03

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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.