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Finding the Fourth Proportional to 192,438.94, 265,561.15 and 107,563.90

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Solution

The fourth proportional to 192,438.94, 265,561.15 and 107,563.90 is: 148,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,438.94 : 265,561.15 = 107,563.90 : x
  2. Step 2: Convert to fraction form
    192,438.94/265,561.15 = 107,563.90/x
  3. Step 3: Cross multiply
    192,438.94x = 265,561.15 × 107,563.90
  4. Step 4: Simplify right side
    192,438.94x = 28,564,792,982.49
  5. Step 5: Solve for x
    x = 28,564,792,982.49/192,438.94
  6. Step 6: Final answer
    x = 148,435.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.