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Finding the Fourth Proportional to 192,491.71, 288,768.70 and 59,340.83

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Solution

The fourth proportional to 192,491.71, 288,768.70 and 59,340.83 is: 89,020.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,491.71 : 288,768.70 = 59,340.83 : x
  2. Step 2: Convert to fraction form
    192,491.71/288,768.70 = 59,340.83/x
  3. Step 3: Cross multiply
    192,491.71x = 288,768.70 × 59,340.83
  4. Step 4: Simplify right side
    192,491.71x = 17,135,774,336.02
  5. Step 5: Solve for x
    x = 17,135,774,336.02/192,491.71
  6. Step 6: Final answer
    x = 89,020.84

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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.