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Finding the Fourth Proportional to 416,079.48, 624,184.02 and 135,531.48

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Solution

The fourth proportional to 416,079.48, 624,184.02 and 135,531.48 is: 203,318.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,079.48 : 624,184.02 = 135,531.48 : x
  2. Step 2: Convert to fraction form
    416,079.48/624,184.02 = 135,531.48/x
  3. Step 3: Cross multiply
    416,079.48x = 624,184.02 × 135,531.48
  4. Step 4: Simplify right side
    416,079.48x = 84,596,584,022.95
  5. Step 5: Solve for x
    x = 84,596,584,022.95/416,079.48
  6. Step 6: Final answer
    x = 203,318.33

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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.