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Finding the Fourth Proportional to 416,240.90, 624,108.52 and 163,218.26

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Solution

The fourth proportional to 416,240.90, 624,108.52 and 163,218.26 is: 244,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,240.90 : 624,108.52 = 163,218.26 : x
  2. Step 2: Convert to fraction form
    416,240.90/624,108.52 = 163,218.26/x
  3. Step 3: Cross multiply
    416,240.90x = 624,108.52 × 163,218.26
  4. Step 4: Simplify right side
    416,240.90x = 101,865,907,531.77
  5. Step 5: Solve for x
    x = 101,865,907,531.77/416,240.90
  6. Step 6: Final answer
    x = 244,728.25

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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.