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Finding the Fourth Proportional to 172,691.70, 238,326.75 and 96,215.82

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Solution

The fourth proportional to 172,691.70, 238,326.75 and 96,215.82 is: 132,784.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,691.70 : 238,326.75 = 96,215.82 : x
  2. Step 2: Convert to fraction form
    172,691.70/238,326.75 = 96,215.82/x
  3. Step 3: Cross multiply
    172,691.70x = 238,326.75 × 96,215.82
  4. Step 4: Simplify right side
    172,691.70x = 22,930,803,679.19
  5. Step 5: Solve for x
    x = 22,930,803,679.19/172,691.70
  6. Step 6: Final answer
    x = 132,784.63

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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.