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Finding the Fourth Proportional to 92,186.56, 138,163.20 and 58,893.76

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Solution

The fourth proportional to 92,186.56, 138,163.20 and 58,893.76 is: 88,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,186.56 : 138,163.20 = 58,893.76 : x
  2. Step 2: Convert to fraction form
    92,186.56/138,163.20 = 58,893.76/x
  3. Step 3: Cross multiply
    92,186.56x = 138,163.20 × 58,893.76
  4. Step 4: Simplify right side
    92,186.56x = 8,136,950,341.63
  5. Step 5: Solve for x
    x = 8,136,950,341.63/92,186.56
  6. Step 6: Final answer
    x = 88,266.12

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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.