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Finding the Fourth Proportional to 76,189.75, 105,132.87 and 43,924.01

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Solution

The fourth proportional to 76,189.75, 105,132.87 and 43,924.01 is: 60,609.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,189.75 : 105,132.87 = 43,924.01 : x
  2. Step 2: Convert to fraction form
    76,189.75/105,132.87 = 43,924.01/x
  3. Step 3: Cross multiply
    76,189.75x = 105,132.87 × 43,924.01
  4. Step 4: Simplify right side
    76,189.75x = 4,617,856,707.54
  5. Step 5: Solve for x
    x = 4,617,856,707.54/76,189.75
  6. Step 6: Final answer
    x = 60,609.95

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1.5x scale

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.