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Finding the Fourth Proportional to 117,791.01, 176,686.52 and 47,719.53

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Solution

The fourth proportional to 117,791.01, 176,686.52 and 47,719.53 is: 71,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,791.01 : 176,686.52 = 47,719.53 : x
  2. Step 2: Convert to fraction form
    117,791.01/176,686.52 = 47,719.53/x
  3. Step 3: Cross multiply
    117,791.01x = 176,686.52 × 47,719.53
  4. Step 4: Simplify right side
    117,791.01x = 8,431,397,453.14
  5. Step 5: Solve for x
    x = 8,431,397,453.14/117,791.01
  6. Step 6: Final answer
    x = 71,579.30

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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.