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Finding the Fourth Proportional to 192,991.68, 289,487.52 and 52,751.52

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Solution

The fourth proportional to 192,991.68, 289,487.52 and 52,751.52 is: 79,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,991.68 : 289,487.52 = 52,751.52 : x
  2. Step 2: Convert to fraction form
    192,991.68/289,487.52 = 52,751.52/x
  3. Step 3: Cross multiply
    192,991.68x = 289,487.52 × 52,751.52
  4. Step 4: Simplify right side
    192,991.68x = 15,270,906,701.03
  5. Step 5: Solve for x
    x = 15,270,906,701.03/192,991.68
  6. Step 6: Final answer
    x = 79,127.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.