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Finding the Fourth Proportional to 281,777.32, 422,730.78 and 92,243.80

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Solution

The fourth proportional to 281,777.32, 422,730.78 and 92,243.80 is: 138,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,777.32 : 422,730.78 = 92,243.80 : x
  2. Step 2: Convert to fraction form
    281,777.32/422,730.78 = 92,243.80/x
  3. Step 3: Cross multiply
    281,777.32x = 422,730.78 × 92,243.80
  4. Step 4: Simplify right side
    281,777.32x = 38,994,293,524.16
  5. Step 5: Solve for x
    x = 38,994,293,524.16/281,777.32
  6. Step 6: Final answer
    x = 138,386.91

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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.