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Finding the Fourth Proportional to 94,791.36, 130,811.02 and 54,505.31

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Solution

The fourth proportional to 94,791.36, 130,811.02 and 54,505.31 is: 75,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,791.36 : 130,811.02 = 54,505.31 : x
  2. Step 2: Convert to fraction form
    94,791.36/130,811.02 = 54,505.31/x
  3. Step 3: Cross multiply
    94,791.36x = 130,811.02 × 54,505.31
  4. Step 4: Simplify right side
    94,791.36x = 7,129,894,406.20
  5. Step 5: Solve for x
    x = 7,129,894,406.20/94,791.36
  6. Step 6: Final answer
    x = 75,216.71

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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.