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Finding the Fourth Proportional to 55,067.84, 76,005.68 and 36,206.72

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Solution

The fourth proportional to 55,067.84, 76,005.68 and 36,206.72 is: 49,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,067.84 : 76,005.68 = 36,206.72 : x
  2. Step 2: Convert to fraction form
    55,067.84/76,005.68 = 36,206.72/x
  3. Step 3: Cross multiply
    55,067.84x = 76,005.68 × 36,206.72
  4. Step 4: Simplify right side
    55,067.84x = 2,751,916,374.17
  5. Step 5: Solve for x
    x = 2,751,916,374.17/55,067.84
  6. Step 6: Final answer
    x = 49,973.20

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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.