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Finding the Fourth Proportional to 117,519.28, 176,241.48 and 38,615.20

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Solution

The fourth proportional to 117,519.28, 176,241.48 and 38,615.20 is: 57,910.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,519.28 : 176,241.48 = 38,615.20 : x
  2. Step 2: Convert to fraction form
    117,519.28/176,241.48 = 38,615.20/x
  3. Step 3: Cross multiply
    117,519.28x = 176,241.48 × 38,615.20
  4. Step 4: Simplify right side
    117,519.28x = 6,805,599,998.50
  5. Step 5: Solve for x
    x = 6,805,599,998.50/117,519.28
  6. Step 6: Final answer
    x = 57,910.50

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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.