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Finding the Fourth Proportional to 136,675.56, 204,834.42 and 73,421.75

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Solution

The fourth proportional to 136,675.56, 204,834.42 and 73,421.75 is: 110,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,675.56 : 204,834.42 = 73,421.75 : x
  2. Step 2: Convert to fraction form
    136,675.56/204,834.42 = 73,421.75/x
  3. Step 3: Cross multiply
    136,675.56x = 204,834.42 × 73,421.75
  4. Step 4: Simplify right side
    136,675.56x = 15,039,300,736.02
  5. Step 5: Solve for x
    x = 15,039,300,736.02/136,675.56
  6. Step 6: Final answer
    x = 110,036.51

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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.