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Finding the Fourth Proportional to 115,693.98, 173,542.41 and 36,807.90

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Solution

The fourth proportional to 115,693.98, 173,542.41 and 36,807.90 is: 55,212.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,693.98 : 173,542.41 = 36,807.90 : x
  2. Step 2: Convert to fraction form
    115,693.98/173,542.41 = 36,807.90/x
  3. Step 3: Cross multiply
    115,693.98x = 173,542.41 × 36,807.90
  4. Step 4: Simplify right side
    115,693.98x = 6,387,731,673.04
  5. Step 5: Solve for x
    x = 6,387,731,673.04/115,693.98
  6. Step 6: Final answer
    x = 55,212.31

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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.