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Finding the Fourth Proportional to 117,860.54, 176,773.26 and 38,975.18

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Solution

The fourth proportional to 117,860.54, 176,773.26 and 38,975.18 is: 58,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,860.54 : 176,773.26 = 38,975.18 : x
  2. Step 2: Convert to fraction form
    117,860.54/176,773.26 = 38,975.18/x
  3. Step 3: Cross multiply
    117,860.54x = 176,773.26 × 38,975.18
  4. Step 4: Simplify right side
    117,860.54x = 6,889,769,627.69
  5. Step 5: Solve for x
    x = 6,889,769,627.69/117,860.54
  6. Step 6: Final answer
    x = 58,456.97

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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.