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Finding the Fourth Proportional to 172,816.62, 238,491.99 and 101,189.94

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Solution

The fourth proportional to 172,816.62, 238,491.99 and 101,189.94 is: 139,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,816.62 : 238,491.99 = 101,189.94 : x
  2. Step 2: Convert to fraction form
    172,816.62/238,491.99 = 101,189.94/x
  3. Step 3: Cross multiply
    172,816.62x = 238,491.99 × 101,189.94
  4. Step 4: Simplify right side
    172,816.62x = 24,132,990,158.58
  5. Step 5: Solve for x
    x = 24,132,990,158.58/172,816.62
  6. Step 6: Final answer
    x = 139,645.08

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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.