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Finding the Fourth Proportional to 172,310.78, 237,775.10 and 95,830.03

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Solution

The fourth proportional to 172,310.78, 237,775.10 and 95,830.03 is: 132,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,310.78 : 237,775.10 = 95,830.03 : x
  2. Step 2: Convert to fraction form
    172,310.78/237,775.10 = 95,830.03/x
  3. Step 3: Cross multiply
    172,310.78x = 237,775.10 × 95,830.03
  4. Step 4: Simplify right side
    172,310.78x = 22,785,994,611.39
  5. Step 5: Solve for x
    x = 22,785,994,611.39/172,310.78
  6. Step 6: Final answer
    x = 132,237.78

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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.