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Finding the Fourth Proportional to 248,366.12, 372,604.72 and 90,594.57

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Solution

The fourth proportional to 248,366.12, 372,604.72 and 90,594.57 is: 135,912.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,366.12 : 372,604.72 = 90,594.57 : x
  2. Step 2: Convert to fraction form
    248,366.12/372,604.72 = 90,594.57/x
  3. Step 3: Cross multiply
    248,366.12x = 372,604.72 × 90,594.57
  4. Step 4: Simplify right side
    248,366.12x = 33,755,963,104.35
  5. Step 5: Solve for x
    x = 33,755,963,104.35/248,366.12
  6. Step 6: Final answer
    x = 135,912.11

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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.