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Finding the Fourth Proportional to 73,087.02, 100,860.09 and 39,553.02

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Solution

The fourth proportional to 73,087.02, 100,860.09 and 39,553.02 is: 54,583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,087.02 : 100,860.09 = 39,553.02 : x
  2. Step 2: Convert to fraction form
    73,087.02/100,860.09 = 39,553.02/x
  3. Step 3: Cross multiply
    73,087.02x = 100,860.09 × 39,553.02
  4. Step 4: Simplify right side
    73,087.02x = 3,989,321,156.97
  5. Step 5: Solve for x
    x = 3,989,321,156.97/73,087.02
  6. Step 6: Final answer
    x = 54,583.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.