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Finding the Fourth Proportional to 113,791.50, 157,032.27 and 63,490.50

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Solution

The fourth proportional to 113,791.50, 157,032.27 and 63,490.50 is: 87,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,791.50 : 157,032.27 = 63,490.50 : x
  2. Step 2: Convert to fraction form
    113,791.50/157,032.27 = 63,490.50/x
  3. Step 3: Cross multiply
    113,791.50x = 157,032.27 × 63,490.50
  4. Step 4: Simplify right side
    113,791.50x = 9,970,057,338.44
  5. Step 5: Solve for x
    x = 9,970,057,338.44/113,791.50
  6. Step 6: Final answer
    x = 87,616.89

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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.