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Finding the Fourth Proportional to 416,316.54, 624,476.43 and 100,772.94

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Solution

The fourth proportional to 416,316.54, 624,476.43 and 100,772.94 is: 151,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,316.54 : 624,476.43 = 100,772.94 : x
  2. Step 2: Convert to fraction form
    416,316.54/624,476.43 = 100,772.94/x
  3. Step 3: Cross multiply
    416,316.54x = 624,476.43 × 100,772.94
  4. Step 4: Simplify right side
    416,316.54x = 62,930,325,811.80
  5. Step 5: Solve for x
    x = 62,930,325,811.80/416,316.54
  6. Step 6: Final answer
    x = 151,159.80

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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.