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Finding the Fourth Proportional to 416,486.28, 624,723.93 and 100,945.92

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Solution

The fourth proportional to 416,486.28, 624,723.93 and 100,945.92 is: 151,417.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,486.28 : 624,723.93 = 100,945.92 : x
  2. Step 2: Convert to fraction form
    416,486.28/624,723.93 = 100,945.92/x
  3. Step 3: Cross multiply
    416,486.28x = 624,723.93 × 100,945.92
  4. Step 4: Simplify right side
    416,486.28x = 63,063,331,859.87
  5. Step 5: Solve for x
    x = 63,063,331,859.87/416,486.28
  6. Step 6: Final answer
    x = 151,417.55

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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.