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Finding the Fourth Proportional to 416,907.09, 625,207.37 and 143,275.59

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Solution

The fourth proportional to 416,907.09, 625,207.37 and 143,275.59 is: 214,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,907.09 : 625,207.37 = 143,275.59 : x
  2. Step 2: Convert to fraction form
    416,907.09/625,207.37 = 143,275.59/x
  3. Step 3: Cross multiply
    416,907.09x = 625,207.37 × 143,275.59
  4. Step 4: Simplify right side
    416,907.09x = 89,576,954,092.72
  5. Step 5: Solve for x
    x = 89,576,954,092.72/416,907.09
  6. Step 6: Final answer
    x = 214,860.71

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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.