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Finding the Fourth Proportional to 96,791.36, 133,572 and 54,349.76

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Solution

The fourth proportional to 96,791.36, 133,572 and 54,349.76 is: 75,002.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,791.36 : 133,572 = 54,349.76 : x
  2. Step 2: Convert to fraction form
    96,791.36/133,572 = 54,349.76/x
  3. Step 3: Cross multiply
    96,791.36x = 133,572 × 54,349.76
  4. Step 4: Simplify right side
    96,791.36x = 7,259,606,142.72
  5. Step 5: Solve for x
    x = 7,259,606,142.72/96,791.36
  6. Step 6: Final answer
    x = 75,002.63

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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.