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Finding the Fourth Proportional to 101,283.35, 139,758.86 and 55,958.54

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Solution

The fourth proportional to 101,283.35, 139,758.86 and 55,958.54 is: 77,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,283.35 : 139,758.86 = 55,958.54 : x
  2. Step 2: Convert to fraction form
    101,283.35/139,758.86 = 55,958.54/x
  3. Step 3: Cross multiply
    101,283.35x = 139,758.86 × 55,958.54
  4. Step 4: Simplify right side
    101,283.35x = 7,820,701,198.77
  5. Step 5: Solve for x
    x = 7,820,701,198.77/101,283.35
  6. Step 6: Final answer
    x = 77,216.06

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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.