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Finding the Fourth Proportional to 187,809.57, 281,758.20 and 61,449.33

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Solution

The fourth proportional to 187,809.57, 281,758.20 and 61,449.33 is: 92,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,809.57 : 281,758.20 = 61,449.33 : x
  2. Step 2: Convert to fraction form
    187,809.57/281,758.20 = 61,449.33/x
  3. Step 3: Cross multiply
    187,809.57x = 281,758.20 × 61,449.33
  4. Step 4: Simplify right side
    187,809.57x = 17,313,852,612.01
  5. Step 5: Solve for x
    x = 17,313,852,612.01/187,809.57
  6. Step 6: Final answer
    x = 92,188.34

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1.5x scale

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.