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Finding the Fourth Proportional to 172,116.75, 237,519 and 96,665.25

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Solution

The fourth proportional to 172,116.75, 237,519 and 96,665.25 is: 133,396.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,116.75 : 237,519 = 96,665.25 : x
  2. Step 2: Convert to fraction form
    172,116.75/237,519 = 96,665.25/x
  3. Step 3: Cross multiply
    172,116.75x = 237,519 × 96,665.25
  4. Step 4: Simplify right side
    172,116.75x = 22,959,833,514.75
  5. Step 5: Solve for x
    x = 22,959,833,514.75/172,116.75
  6. Step 6: Final answer
    x = 133,396.86

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1.5x scale

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.