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Finding the Fourth Proportional to 414,685.48, 621,993.98 and 115,173.11

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Solution

The fourth proportional to 414,685.48, 621,993.98 and 115,173.11 is: 172,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,685.48 : 621,993.98 = 115,173.11 : x
  2. Step 2: Convert to fraction form
    414,685.48/621,993.98 = 115,173.11/x
  3. Step 3: Cross multiply
    414,685.48x = 621,993.98 × 115,173.11
  4. Step 4: Simplify right side
    414,685.48x = 71,636,978,255.84
  5. Step 5: Solve for x
    x = 71,636,978,255.84/414,685.48
  6. Step 6: Final answer
    x = 172,750.15

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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.