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Finding the Fourth Proportional to 192,398.64, 288,628.92 and 59,278.80

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Solution

The fourth proportional to 192,398.64, 288,628.92 and 59,278.80 is: 88,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,398.64 : 288,628.92 = 59,278.80 : x
  2. Step 2: Convert to fraction form
    192,398.64/288,628.92 = 59,278.80/x
  3. Step 3: Cross multiply
    192,398.64x = 288,628.92 × 59,278.80
  4. Step 4: Simplify right side
    192,398.64x = 17,109,576,022.90
  5. Step 5: Solve for x
    x = 17,109,576,022.90/192,398.64
  6. Step 6: Final answer
    x = 88,927.74

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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.