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Finding the Fourth Proportional to 172,750.85, 238,314.68 and 101,086.50

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Solution

The fourth proportional to 172,750.85, 238,314.68 and 101,086.50 is: 139,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,750.85 : 238,314.68 = 101,086.50 : x
  2. Step 2: Convert to fraction form
    172,750.85/238,314.68 = 101,086.50/x
  3. Step 3: Cross multiply
    172,750.85x = 238,314.68 × 101,086.50
  4. Step 4: Simplify right side
    172,750.85x = 24,090,396,773.46
  5. Step 5: Solve for x
    x = 24,090,396,773.46/172,750.85
  6. Step 6: Final answer
    x = 139,451.69

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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.