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Finding the Fourth Proportional to 107,814.80, 161,729.40 and 36,736.40

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Solution

The fourth proportional to 107,814.80, 161,729.40 and 36,736.40 is: 55,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,814.80 : 161,729.40 = 36,736.40 : x
  2. Step 2: Convert to fraction form
    107,814.80/161,729.40 = 36,736.40/x
  3. Step 3: Cross multiply
    107,814.80x = 161,729.40 × 36,736.40
  4. Step 4: Simplify right side
    107,814.80x = 5,941,355,930.16
  5. Step 5: Solve for x
    x = 5,941,355,930.16/107,814.80
  6. Step 6: Final answer
    x = 55,107.05

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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.