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Finding the Fourth Proportional to 143,876.26, 215,814.39 and 60,770.98

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Solution

The fourth proportional to 143,876.26, 215,814.39 and 60,770.98 is: 91,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,876.26 : 215,814.39 = 60,770.98 : x
  2. Step 2: Convert to fraction form
    143,876.26/215,814.39 = 60,770.98/x
  3. Step 3: Cross multiply
    143,876.26x = 215,814.39 × 60,770.98
  4. Step 4: Simplify right side
    143,876.26x = 13,115,251,978.40
  5. Step 5: Solve for x
    x = 13,115,251,978.40/143,876.26
  6. Step 6: Final answer
    x = 91,156.47

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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.