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Finding the Fourth Proportional to 118,980.89, 178,452.15 and 34,721.27

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Solution

The fourth proportional to 118,980.89, 178,452.15 and 34,721.27 is: 52,076.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,980.89 : 178,452.15 = 34,721.27 : x
  2. Step 2: Convert to fraction form
    118,980.89/178,452.15 = 34,721.27/x
  3. Step 3: Cross multiply
    118,980.89x = 178,452.15 × 34,721.27
  4. Step 4: Simplify right side
    118,980.89x = 6,196,085,282.23
  5. Step 5: Solve for x
    x = 6,196,085,282.23/118,980.89
  6. Step 6: Final answer
    x = 52,076.31

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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.