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Finding the Fourth Proportional to 195,616.80, 293,425.20 and 47,872.80

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Solution

The fourth proportional to 195,616.80, 293,425.20 and 47,872.80 is: 71,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,616.80 : 293,425.20 = 47,872.80 : x
  2. Step 2: Convert to fraction form
    195,616.80/293,425.20 = 47,872.80/x
  3. Step 3: Cross multiply
    195,616.80x = 293,425.20 × 47,872.80
  4. Step 4: Simplify right side
    195,616.80x = 14,047,085,914.56
  5. Step 5: Solve for x
    x = 14,047,085,914.56/195,616.80
  6. Step 6: Final answer
    x = 71,809.20

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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.