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Finding the Fourth Proportional to 101,254.99, 139,731.33 and 55,936.09

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Solution

The fourth proportional to 101,254.99, 139,731.33 and 55,936.09 is: 77,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,254.99 : 139,731.33 = 55,936.09 : x
  2. Step 2: Convert to fraction form
    101,254.99/139,731.33 = 55,936.09/x
  3. Step 3: Cross multiply
    101,254.99x = 139,731.33 × 55,936.09
  4. Step 4: Simplify right side
    101,254.99x = 7,816,024,250.70
  5. Step 5: Solve for x
    x = 7,816,024,250.70/101,254.99
  6. Step 6: Final answer
    x = 77,191.50

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1.5x scale

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.