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Finding the Fourth Proportional to 97,424.56, 134,448.42 and 54,983.80

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Solution

The fourth proportional to 97,424.56, 134,448.42 and 54,983.80 is: 75,879.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,424.56 : 134,448.42 = 54,983.80 : x
  2. Step 2: Convert to fraction form
    97,424.56/134,448.42 = 54,983.80/x
  3. Step 3: Cross multiply
    97,424.56x = 134,448.42 × 54,983.80
  4. Step 4: Simplify right side
    97,424.56x = 7,392,485,035.60
  5. Step 5: Solve for x
    x = 7,392,485,035.60/97,424.56
  6. Step 6: Final answer
    x = 75,879.07

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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.