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Finding the Fourth Proportional to 101,252.49, 139,727.88 and 55,933.59

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Solution

The fourth proportional to 101,252.49, 139,727.88 and 55,933.59 is: 77,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,252.49 : 139,727.88 = 55,933.59 : x
  2. Step 2: Convert to fraction form
    101,252.49/139,727.88 = 55,933.59/x
  3. Step 3: Cross multiply
    101,252.49x = 139,727.88 × 55,933.59
  4. Step 4: Simplify right side
    101,252.49x = 7,815,481,951.49
  5. Step 5: Solve for x
    x = 7,815,481,951.49/101,252.49
  6. Step 6: Final answer
    x = 77,188.05

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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.