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Finding the Fourth Proportional to 73,405.65, 101,306.90 and 41,145.75

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Solution

The fourth proportional to 73,405.65, 101,306.90 and 41,145.75 is: 56,785.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,405.65 : 101,306.90 = 41,145.75 : x
  2. Step 2: Convert to fraction form
    73,405.65/101,306.90 = 41,145.75/x
  3. Step 3: Cross multiply
    73,405.65x = 101,306.90 × 41,145.75
  4. Step 4: Simplify right side
    73,405.65x = 4,168,348,380.68
  5. Step 5: Solve for x
    x = 4,168,348,380.68/73,405.65
  6. Step 6: Final answer
    x = 56,785.12

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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.