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Finding the Fourth Proportional to 192,574.68, 287,582.46 and 190,489.56

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Solution

The fourth proportional to 192,574.68, 287,582.46 and 190,489.56 is: 284,468.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,574.68 : 287,582.46 = 190,489.56 : x
  2. Step 2: Convert to fraction form
    192,574.68/287,582.46 = 190,489.56/x
  3. Step 3: Cross multiply
    192,574.68x = 287,582.46 × 190,489.56
  4. Step 4: Simplify right side
    192,574.68x = 54,781,456,269.12
  5. Step 5: Solve for x
    x = 54,781,456,269.12/192,574.68
  6. Step 6: Final answer
    x = 284,468.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.