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Finding the Fourth Proportional to 117,960.54, 176,816.19 and 84,662.55

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Solution

The fourth proportional to 117,960.54, 176,816.19 and 84,662.55 is: 126,904.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,960.54 : 176,816.19 = 84,662.55 : x
  2. Step 2: Convert to fraction form
    117,960.54/176,816.19 = 84,662.55/x
  3. Step 3: Cross multiply
    117,960.54x = 176,816.19 × 84,662.55
  4. Step 4: Simplify right side
    117,960.54x = 14,969,709,526.68
  5. Step 5: Solve for x
    x = 14,969,709,526.68/117,960.54
  6. Step 6: Final answer
    x = 126,904.38

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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.