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Finding the Fourth Proportional to 99,435.70, 149,134.10 and 37,093.78

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Solution

The fourth proportional to 99,435.70, 149,134.10 and 37,093.78 is: 55,633.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,435.70 : 149,134.10 = 37,093.78 : x
  2. Step 2: Convert to fraction form
    99,435.70/149,134.10 = 37,093.78/x
  3. Step 3: Cross multiply
    99,435.70x = 149,134.10 × 37,093.78
  4. Step 4: Simplify right side
    99,435.70x = 5,531,947,495.90
  5. Step 5: Solve for x
    x = 5,531,947,495.90/99,435.70
  6. Step 6: Final answer
    x = 55,633.41

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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.