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Finding the Fourth Proportional to 117,372.51, 161,974.14 and 63,657.51

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Solution

The fourth proportional to 117,372.51, 161,974.14 and 63,657.51 is: 87,847.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,372.51 : 161,974.14 = 63,657.51 : x
  2. Step 2: Convert to fraction form
    117,372.51/161,974.14 = 63,657.51/x
  3. Step 3: Cross multiply
    117,372.51x = 161,974.14 × 63,657.51
  4. Step 4: Simplify right side
    117,372.51x = 10,310,870,436.79
  5. Step 5: Solve for x
    x = 10,310,870,436.79/117,372.51
  6. Step 6: Final answer
    x = 87,847.41

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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.