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Finding the Fourth Proportional to 77,448.58, 115,985.74 and 44,067.51

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Solution

The fourth proportional to 77,448.58, 115,985.74 and 44,067.51 is: 65,994.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,448.58 : 115,985.74 = 44,067.51 : x
  2. Step 2: Convert to fraction form
    77,448.58/115,985.74 = 44,067.51/x
  3. Step 3: Cross multiply
    77,448.58x = 115,985.74 × 44,067.51
  4. Step 4: Simplify right side
    77,448.58x = 5,111,202,757.31
  5. Step 5: Solve for x
    x = 5,111,202,757.31/77,448.58
  6. Step 6: Final answer
    x = 65,994.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.