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Finding the Fourth Proportional to 117,244.70, 161,788.11 and 66,262.04

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Solution

The fourth proportional to 117,244.70, 161,788.11 and 66,262.04 is: 91,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,244.70 : 161,788.11 = 66,262.04 : x
  2. Step 2: Convert to fraction form
    117,244.70/161,788.11 = 66,262.04/x
  3. Step 3: Cross multiply
    117,244.70x = 161,788.11 × 66,262.04
  4. Step 4: Simplify right side
    117,244.70x = 10,720,410,216.34
  5. Step 5: Solve for x
    x = 10,720,410,216.34/117,244.70
  6. Step 6: Final answer
    x = 91,436.20

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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.