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Finding the Fourth Proportional to 99,889.47, 149,784.05 and 33,306.03

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Solution

The fourth proportional to 99,889.47, 149,784.05 and 33,306.03 is: 49,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,889.47 : 149,784.05 = 33,306.03 : x
  2. Step 2: Convert to fraction form
    99,889.47/149,784.05 = 33,306.03/x
  3. Step 3: Cross multiply
    99,889.47x = 149,784.05 × 33,306.03
  4. Step 4: Simplify right side
    99,889.47x = 4,988,711,896.29
  5. Step 5: Solve for x
    x = 4,988,711,896.29/99,889.47
  6. Step 6: Final answer
    x = 49,942.32

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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.