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Finding the Fourth Proportional to 190,481.28, 262,870.56 and 105,593.28

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Solution

The fourth proportional to 190,481.28, 262,870.56 and 105,593.28 is: 145,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,481.28 : 262,870.56 = 105,593.28 : x
  2. Step 2: Convert to fraction form
    190,481.28/262,870.56 = 105,593.28/x
  3. Step 3: Cross multiply
    190,481.28x = 262,870.56 × 105,593.28
  4. Step 4: Simplify right side
    190,481.28x = 27,757,364,645.84
  5. Step 5: Solve for x
    x = 27,757,364,645.84/190,481.28
  6. Step 6: Final answer
    x = 145,722.27

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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.