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Finding the Fourth Proportional to 192,939.59, 289,420.32 and 59,838.77

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Solution

The fourth proportional to 192,939.59, 289,420.32 and 59,838.77 is: 89,761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,939.59 : 289,420.32 = 59,838.77 : x
  2. Step 2: Convert to fraction form
    192,939.59/289,420.32 = 59,838.77/x
  3. Step 3: Cross multiply
    192,939.59x = 289,420.32 × 59,838.77
  4. Step 4: Simplify right side
    192,939.59x = 17,318,555,961.81
  5. Step 5: Solve for x
    x = 17,318,555,961.81/192,939.59
  6. Step 6: Final answer
    x = 89,761.55

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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.