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Finding the Fourth Proportional to 99,426.78, 149,163.53 and 32,866.91

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Solution

The fourth proportional to 99,426.78, 149,163.53 and 32,866.91 is: 49,308.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,426.78 : 149,163.53 = 32,866.91 : x
  2. Step 2: Convert to fraction form
    99,426.78/149,163.53 = 32,866.91/x
  3. Step 3: Cross multiply
    99,426.78x = 149,163.53 × 32,866.91
  4. Step 4: Simplify right side
    99,426.78x = 4,902,543,405.64
  5. Step 5: Solve for x
    x = 4,902,543,405.64/99,426.78
  6. Step 6: Final answer
    x = 49,308.08

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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.