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Finding the Fourth Proportional to 133,391.36, 200,057.28 and 39,884.96

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Solution

The fourth proportional to 133,391.36, 200,057.28 and 39,884.96 is: 59,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,391.36 : 200,057.28 = 39,884.96 : x
  2. Step 2: Convert to fraction form
    133,391.36/200,057.28 = 39,884.96/x
  3. Step 3: Cross multiply
    133,391.36x = 200,057.28 × 39,884.96
  4. Step 4: Simplify right side
    133,391.36x = 7,979,276,610.51
  5. Step 5: Solve for x
    x = 7,979,276,610.51/133,391.36
  6. Step 6: Final answer
    x = 59,818.54

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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.