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Finding the Fourth Proportional to 101,063.95, 139,522.93 and 60,786.70

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Solution

The fourth proportional to 101,063.95, 139,522.93 and 60,786.70 is: 83,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,063.95 : 139,522.93 = 60,786.70 : x
  2. Step 2: Convert to fraction form
    101,063.95/139,522.93 = 60,786.70/x
  3. Step 3: Cross multiply
    101,063.95x = 139,522.93 × 60,786.70
  4. Step 4: Simplify right side
    101,063.95x = 8,481,138,944.04
  5. Step 5: Solve for x
    x = 8,481,138,944.04/101,063.95
  6. Step 6: Final answer
    x = 83,918.54

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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.