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Finding the Fourth Proportional to 117,104.96, 161,604.88 and 66,803.96

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Solution

The fourth proportional to 117,104.96, 161,604.88 and 66,803.96 is: 92,189.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,104.96 : 161,604.88 = 66,803.96 : x
  2. Step 2: Convert to fraction form
    117,104.96/161,604.88 = 66,803.96/x
  3. Step 3: Cross multiply
    117,104.96x = 161,604.88 × 66,803.96
  4. Step 4: Simplify right side
    117,104.96x = 10,795,845,939.32
  5. Step 5: Solve for x
    x = 10,795,845,939.32/117,104.96
  6. Step 6: Final answer
    x = 92,189.48

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1.5x scale

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.