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Finding the Fourth Proportional to 139,837.62, 209,675.43 and 95,517.93

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Solution

The fourth proportional to 139,837.62, 209,675.43 and 95,517.93 is: 143,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,837.62 : 209,675.43 = 95,517.93 : x
  2. Step 2: Convert to fraction form
    139,837.62/209,675.43 = 95,517.93/x
  3. Step 3: Cross multiply
    139,837.62x = 209,675.43 × 95,517.93
  4. Step 4: Simplify right side
    139,837.62x = 20,027,763,045.46
  5. Step 5: Solve for x
    x = 20,027,763,045.46/139,837.62
  6. Step 6: Final answer
    x = 143,221.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.