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Finding the Fourth Proportional to 101,057.33, 139,468.97 and 75,519.35

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Solution

The fourth proportional to 101,057.33, 139,468.97 and 75,519.35 is: 104,224.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,057.33 : 139,468.97 = 75,519.35 : x
  2. Step 2: Convert to fraction form
    101,057.33/139,468.97 = 75,519.35/x
  3. Step 3: Cross multiply
    101,057.33x = 139,468.97 × 75,519.35
  4. Step 4: Simplify right side
    101,057.33x = 10,532,605,959.57
  5. Step 5: Solve for x
    x = 10,532,605,959.57/101,057.33
  6. Step 6: Final answer
    x = 104,224.07

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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.