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Finding the Fourth Proportional to 118,991.17, 178,503.45 and 34,757.51

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Solution

The fourth proportional to 118,991.17, 178,503.45 and 34,757.51 is: 52,141.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,991.17 : 178,503.45 = 34,757.51 : x
  2. Step 2: Convert to fraction form
    118,991.17/178,503.45 = 34,757.51/x
  3. Step 3: Cross multiply
    118,991.17x = 178,503.45 × 34,757.51
  4. Step 4: Simplify right side
    118,991.17x = 6,204,335,448.41
  5. Step 5: Solve for x
    x = 6,204,335,448.41/118,991.17
  6. Step 6: Final answer
    x = 52,141.14

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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.