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Finding the Fourth Proportional to 117,854.45, 176,765.07 and 61,676.09

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Solution

The fourth proportional to 117,854.45, 176,765.07 and 61,676.09 is: 92,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,854.45 : 176,765.07 = 61,676.09 : x
  2. Step 2: Convert to fraction form
    117,854.45/176,765.07 = 61,676.09/x
  3. Step 3: Cross multiply
    117,854.45x = 176,765.07 × 61,676.09
  4. Step 4: Simplify right side
    117,854.45x = 10,902,178,366.18
  5. Step 5: Solve for x
    x = 10,902,178,366.18/117,854.45
  6. Step 6: Final answer
    x = 92,505.45

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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.