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Finding the Fourth Proportional to 117,251.54, 161,807.69 and 63,536.54

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Solution

The fourth proportional to 117,251.54, 161,807.69 and 63,536.54 is: 87,680.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,251.54 : 161,807.69 = 63,536.54 : x
  2. Step 2: Convert to fraction form
    117,251.54/161,807.69 = 63,536.54/x
  3. Step 3: Cross multiply
    117,251.54x = 161,807.69 × 63,536.54
  4. Step 4: Simplify right side
    117,251.54x = 10,280,700,450.31
  5. Step 5: Solve for x
    x = 10,280,700,450.31/117,251.54
  6. Step 6: Final answer
    x = 87,680.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.