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Finding the Fourth Proportional to 101,252.69, 139,727.82 and 55,933.83

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Solution

The fourth proportional to 101,252.69, 139,727.82 and 55,933.83 is: 77,188.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,252.69 : 139,727.82 = 55,933.83 : x
  2. Step 2: Convert to fraction form
    101,252.69/139,727.82 = 55,933.83/x
  3. Step 3: Cross multiply
    101,252.69x = 139,727.82 × 55,933.83
  4. Step 4: Simplify right side
    101,252.69x = 7,815,512,130.15
  5. Step 5: Solve for x
    x = 7,815,512,130.15/101,252.69
  6. Step 6: Final answer
    x = 77,188.19

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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.