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Finding the Fourth Proportional to 117,276.50, 161,840.43 and 65,593.02

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Solution

The fourth proportional to 117,276.50, 161,840.43 and 65,593.02 is: 90,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,276.50 : 161,840.43 = 65,593.02 : x
  2. Step 2: Convert to fraction form
    117,276.50/161,840.43 = 65,593.02/x
  3. Step 3: Cross multiply
    117,276.50x = 161,840.43 × 65,593.02
  4. Step 4: Simplify right side
    117,276.50x = 10,615,602,561.80
  5. Step 5: Solve for x
    x = 10,615,602,561.80/117,276.50
  6. Step 6: Final answer
    x = 90,517.73

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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.