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Finding the Fourth Proportional to 117,107.88, 175,661.01 and 28,361.85

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Solution

The fourth proportional to 117,107.88, 175,661.01 and 28,361.85 is: 42,542.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,107.88 : 175,661.01 = 28,361.85 : x
  2. Step 2: Convert to fraction form
    117,107.88/175,661.01 = 28,361.85/x
  3. Step 3: Cross multiply
    117,107.88x = 175,661.01 × 28,361.85
  4. Step 4: Simplify right side
    117,107.88x = 4,982,071,216.47
  5. Step 5: Solve for x
    x = 4,982,071,216.47/117,107.88
  6. Step 6: Final answer
    x = 42,542.58

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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.