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Finding the Fourth Proportional to 192,418.40, 288,659.19 and 59,298.68

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Solution

The fourth proportional to 192,418.40, 288,659.19 and 59,298.68 is: 88,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,418.40 : 288,659.19 = 59,298.68 : x
  2. Step 2: Convert to fraction form
    192,418.40/288,659.19 = 59,298.68/x
  3. Step 3: Cross multiply
    192,418.40x = 288,659.19 × 59,298.68
  4. Step 4: Simplify right side
    192,418.40x = 17,117,108,936.87
  5. Step 5: Solve for x
    x = 17,117,108,936.87/192,418.40
  6. Step 6: Final answer
    x = 88,957.76

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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.