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Finding the Fourth Proportional to 115,756.40, 173,375.40 and 95,020.40

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Solution

The fourth proportional to 115,756.40, 173,375.40 and 95,020.40 is: 142,317.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,756.40 : 173,375.40 = 95,020.40 : x
  2. Step 2: Convert to fraction form
    115,756.40/173,375.40 = 95,020.40/x
  3. Step 3: Cross multiply
    115,756.40x = 173,375.40 × 95,020.40
  4. Step 4: Simplify right side
    115,756.40x = 16,474,199,858.16
  5. Step 5: Solve for x
    x = 16,474,199,858.16/115,756.40
  6. Step 6: Final answer
    x = 142,317.83

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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.