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Finding the Fourth Proportional to 95,379.84, 143,040.60 and 65,986.56

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Solution

The fourth proportional to 95,379.84, 143,040.60 and 65,986.56 is: 98,959.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,379.84 : 143,040.60 = 65,986.56 : x
  2. Step 2: Convert to fraction form
    95,379.84/143,040.60 = 65,986.56/x
  3. Step 3: Cross multiply
    95,379.84x = 143,040.60 × 65,986.56
  4. Step 4: Simplify right side
    95,379.84x = 9,438,757,134.34
  5. Step 5: Solve for x
    x = 9,438,757,134.34/95,379.84
  6. Step 6: Final answer
    x = 98,959.67

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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.