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Finding the Fourth Proportional to 95,571, 143,373.80 and 39,379.86

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Solution

The fourth proportional to 95,571, 143,373.80 and 39,379.86 is: 59,076.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,571 : 143,373.80 = 39,379.86 : x
  2. Step 2: Convert to fraction form
    95,571/143,373.80 = 39,379.86/x
  3. Step 3: Cross multiply
    95,571x = 143,373.80 × 39,379.86
  4. Step 4: Simplify right side
    95,571x = 5,646,040,270.12
  5. Step 5: Solve for x
    x = 5,646,040,270.12/95,571
  6. Step 6: Final answer
    x = 59,076.92

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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.