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Finding the Fourth Proportional to 172,691.70, 238,249.04 and 104,683.88

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Solution

The fourth proportional to 172,691.70, 238,249.04 and 104,683.88 is: 144,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,691.70 : 238,249.04 = 104,683.88 : x
  2. Step 2: Convert to fraction form
    172,691.70/238,249.04 = 104,683.88/x
  3. Step 3: Cross multiply
    172,691.70x = 238,249.04 × 104,683.88
  4. Step 4: Simplify right side
    172,691.70x = 24,940,833,913.48
  5. Step 5: Solve for x
    x = 24,940,833,913.48/172,691.70
  6. Step 6: Final answer
    x = 144,424.05

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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.