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Finding the Fourth Proportional to 118,372.73, 177,568.34 and 39,486.87

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Solution

The fourth proportional to 118,372.73, 177,568.34 and 39,486.87 is: 59,233.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,372.73 : 177,568.34 = 39,486.87 : x
  2. Step 2: Convert to fraction form
    118,372.73/177,568.34 = 39,486.87/x
  3. Step 3: Cross multiply
    118,372.73x = 177,568.34 × 39,486.87
  4. Step 4: Simplify right side
    118,372.73x = 7,011,617,760.26
  5. Step 5: Solve for x
    x = 7,011,617,760.26/118,372.73
  6. Step 6: Final answer
    x = 59,233.39

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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.