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Finding the Fourth Proportional to 310,630.23, 465,994.55 and 100,218.96

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Solution

The fourth proportional to 310,630.23, 465,994.55 and 100,218.96 is: 150,344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,630.23 : 465,994.55 = 100,218.96 : x
  2. Step 2: Convert to fraction form
    310,630.23/465,994.55 = 100,218.96/x
  3. Step 3: Cross multiply
    310,630.23x = 465,994.55 × 100,218.96
  4. Step 4: Simplify right side
    310,630.23x = 46,701,488,665.57
  5. Step 5: Solve for x
    x = 46,701,488,665.57/310,630.23
  6. Step 6: Final answer
    x = 150,344.31

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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.