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Finding the Fourth Proportional to 190,529.87, 262,952.87 and 109,979.01

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Solution

The fourth proportional to 190,529.87, 262,952.87 and 109,979.01 is: 151,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,529.87 : 262,952.87 = 109,979.01 : x
  2. Step 2: Convert to fraction form
    190,529.87/262,952.87 = 109,979.01/x
  3. Step 3: Cross multiply
    190,529.87x = 262,952.87 × 109,979.01
  4. Step 4: Simplify right side
    190,529.87x = 28,919,295,769.36
  5. Step 5: Solve for x
    x = 28,919,295,769.36/190,529.87
  6. Step 6: Final answer
    x = 151,783.53

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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.