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Finding the Fourth Proportional to 172,115.66, 237,493.77 and 96,649.58

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Solution

The fourth proportional to 172,115.66, 237,493.77 and 96,649.58 is: 133,361.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,115.66 : 237,493.77 = 96,649.58 : x
  2. Step 2: Convert to fraction form
    172,115.66/237,493.77 = 96,649.58/x
  3. Step 3: Cross multiply
    172,115.66x = 237,493.77 × 96,649.58
  4. Step 4: Simplify right side
    172,115.66x = 22,953,673,123.12
  5. Step 5: Solve for x
    x = 22,953,673,123.12/172,115.66
  6. Step 6: Final answer
    x = 133,361.91

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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.