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Finding the Fourth Proportional to 416,921.38, 625,373.43 and 101,379.94

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Solution

The fourth proportional to 416,921.38, 625,373.43 and 101,379.94 is: 152,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,921.38 : 625,373.43 = 101,379.94 : x
  2. Step 2: Convert to fraction form
    416,921.38/625,373.43 = 101,379.94/x
  3. Step 3: Cross multiply
    416,921.38x = 625,373.43 × 101,379.94
  4. Step 4: Simplify right side
    416,921.38x = 63,400,320,810.99
  5. Step 5: Solve for x
    x = 63,400,320,810.99/416,921.38
  6. Step 6: Final answer
    x = 152,067.81

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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.