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Finding the Fourth Proportional to 73,887.93, 101,969.28 and 42,067.08

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Solution

The fourth proportional to 73,887.93, 101,969.28 and 42,067.08 is: 58,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,887.93 : 101,969.28 = 42,067.08 : x
  2. Step 2: Convert to fraction form
    73,887.93/101,969.28 = 42,067.08/x
  3. Step 3: Cross multiply
    73,887.93x = 101,969.28 × 42,067.08
  4. Step 4: Simplify right side
    73,887.93x = 4,289,549,859.30
  5. Step 5: Solve for x
    x = 4,289,549,859.30/73,887.93
  6. Step 6: Final answer
    x = 58,054.81

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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.