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Finding the Fourth Proportional to 414,549.55, 621,754.77 and 115,060.56

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Solution

The fourth proportional to 414,549.55, 621,754.77 and 115,060.56 is: 172,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,549.55 : 621,754.77 = 115,060.56 : x
  2. Step 2: Convert to fraction form
    414,549.55/621,754.77 = 115,060.56/x
  3. Step 3: Cross multiply
    414,549.55x = 621,754.77 × 115,060.56
  4. Step 4: Simplify right side
    414,549.55x = 71,539,452,018.87
  5. Step 5: Solve for x
    x = 71,539,452,018.87/414,549.55
  6. Step 6: Final answer
    x = 172,571.53

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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.