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Finding the Fourth Proportional to 86,174.34, 129,260.53 and 33,620.73

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Solution

The fourth proportional to 86,174.34, 129,260.53 and 33,620.73 is: 50,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,174.34 : 129,260.53 = 33,620.73 : x
  2. Step 2: Convert to fraction form
    86,174.34/129,260.53 = 33,620.73/x
  3. Step 3: Cross multiply
    86,174.34x = 129,260.53 × 33,620.73
  4. Step 4: Simplify right side
    86,174.34x = 4,345,833,378.79
  5. Step 5: Solve for x
    x = 4,345,833,378.79/86,174.34
  6. Step 6: Final answer
    x = 50,430.71

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1.5x scale

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.