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Finding the Fourth Proportional to 73,661.86, 101,564.13 and 57,313.81

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Solution

The fourth proportional to 73,661.86, 101,564.13 and 57,313.81 is: 79,023.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,661.86 : 101,564.13 = 57,313.81 : x
  2. Step 2: Convert to fraction form
    73,661.86/101,564.13 = 57,313.81/x
  3. Step 3: Cross multiply
    73,661.86x = 101,564.13 × 57,313.81
  4. Step 4: Simplify right side
    73,661.86x = 5,821,027,249.64
  5. Step 5: Solve for x
    x = 5,821,027,249.64/73,661.86
  6. Step 6: Final answer
    x = 79,023.63

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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.