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Finding the Fourth Proportional to 118,537.31, 177,769.06 and 39,633.09

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Solution

The fourth proportional to 118,537.31, 177,769.06 and 39,633.09 is: 59,437.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,537.31 : 177,769.06 = 39,633.09 : x
  2. Step 2: Convert to fraction form
    118,537.31/177,769.06 = 39,633.09/x
  3. Step 3: Cross multiply
    118,537.31x = 177,769.06 × 39,633.09
  4. Step 4: Simplify right side
    118,537.31x = 7,045,536,388.48
  5. Step 5: Solve for x
    x = 7,045,536,388.48/118,537.31
  6. Step 6: Final answer
    x = 59,437.29

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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.