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Finding the Fourth Proportional to 118,960.44, 178,384.15 and 69,055.84

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Solution

The fourth proportional to 118,960.44, 178,384.15 and 69,055.84 is: 103,550.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,960.44 : 178,384.15 = 69,055.84 : x
  2. Step 2: Convert to fraction form
    118,960.44/178,384.15 = 69,055.84/x
  3. Step 3: Cross multiply
    118,960.44x = 178,384.15 × 69,055.84
  4. Step 4: Simplify right side
    118,960.44x = 12,318,467,320.94
  5. Step 5: Solve for x
    x = 12,318,467,320.94/118,960.44
  6. Step 6: Final answer
    x = 103,550.96

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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.