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Finding the Fourth Proportional to 117,232.53, 161,773.23 and 74,786.50

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Solution

The fourth proportional to 117,232.53, 161,773.23 and 74,786.50 is: 103,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,232.53 : 161,773.23 = 74,786.50 : x
  2. Step 2: Convert to fraction form
    117,232.53/161,773.23 = 74,786.50/x
  3. Step 3: Cross multiply
    117,232.53x = 161,773.23 × 74,786.50
  4. Step 4: Simplify right side
    117,232.53x = 12,098,453,665.40
  5. Step 5: Solve for x
    x = 12,098,453,665.40/117,232.53
  6. Step 6: Final answer
    x = 103,200.48

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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.