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Finding the Fourth Proportional to 97,711.80, 146,276.10 and 91,944.60

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Solution

The fourth proportional to 97,711.80, 146,276.10 and 91,944.60 is: 137,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,711.80 : 146,276.10 = 91,944.60 : x
  2. Step 2: Convert to fraction form
    97,711.80/146,276.10 = 91,944.60/x
  3. Step 3: Cross multiply
    97,711.80x = 146,276.10 × 91,944.60
  4. Step 4: Simplify right side
    97,711.80x = 13,449,297,504.06
  5. Step 5: Solve for x
    x = 13,449,297,504.06/97,711.80
  6. Step 6: Final answer
    x = 137,642.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.