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Finding the Fourth Proportional to 99,112.88, 148,927.21 and 92,633.90

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Solution

The fourth proportional to 99,112.88, 148,927.21 and 92,633.90 is: 139,191.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.88 : 148,927.21 = 92,633.90 : x
  2. Step 2: Convert to fraction form
    99,112.88/148,927.21 = 92,633.90/x
  3. Step 3: Cross multiply
    99,112.88x = 148,927.21 × 92,633.90
  4. Step 4: Simplify right side
    99,112.88x = 13,795,707,302.20
  5. Step 5: Solve for x
    x = 13,795,707,302.20/99,112.88
  6. Step 6: Final answer
    x = 139,191.87

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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.