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Finding the Fourth Proportional to 117,676.39, 176,563.81 and 51,172.47

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Solution

The fourth proportional to 117,676.39, 176,563.81 and 51,172.47 is: 76,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,676.39 : 176,563.81 = 51,172.47 : x
  2. Step 2: Convert to fraction form
    117,676.39/176,563.81 = 51,172.47/x
  3. Step 3: Cross multiply
    117,676.39x = 176,563.81 × 51,172.47
  4. Step 4: Simplify right side
    117,676.39x = 9,035,206,270.31
  5. Step 5: Solve for x
    x = 9,035,206,270.31/117,676.39
  6. Step 6: Final answer
    x = 76,780.11

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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.