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Finding the Fourth Proportional to 416,706.48, 625,077 and 121,218.48

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Solution

The fourth proportional to 416,706.48, 625,077 and 121,218.48 is: 181,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,706.48 : 625,077 = 121,218.48 : x
  2. Step 2: Convert to fraction form
    416,706.48/625,077 = 121,218.48/x
  3. Step 3: Cross multiply
    416,706.48x = 625,077 × 121,218.48
  4. Step 4: Simplify right side
    416,706.48x = 75,770,883,822.96
  5. Step 5: Solve for x
    x = 75,770,883,822.96/416,706.48
  6. Step 6: Final answer
    x = 181,832.75

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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.