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Finding the Fourth Proportional to 118,963.67, 178,453.70 and 34,724.54

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Solution

The fourth proportional to 118,963.67, 178,453.70 and 34,724.54 is: 52,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,963.67 : 178,453.70 = 34,724.54 : x
  2. Step 2: Convert to fraction form
    118,963.67/178,453.70 = 34,724.54/x
  3. Step 3: Cross multiply
    118,963.67x = 178,453.70 × 34,724.54
  4. Step 4: Simplify right side
    118,963.67x = 6,196,722,643.80
  5. Step 5: Solve for x
    x = 6,196,722,643.80/118,963.67
  6. Step 6: Final answer
    x = 52,089.20

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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.