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Finding the Fourth Proportional to 86,446.44, 129,704.22 and 31,046.76

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Solution

The fourth proportional to 86,446.44, 129,704.22 and 31,046.76 is: 46,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,446.44 : 129,704.22 = 31,046.76 : x
  2. Step 2: Convert to fraction form
    86,446.44/129,704.22 = 31,046.76/x
  3. Step 3: Cross multiply
    86,446.44x = 129,704.22 × 31,046.76
  4. Step 4: Simplify right side
    86,446.44x = 4,026,895,789.33
  5. Step 5: Solve for x
    x = 4,026,895,789.33/86,446.44
  6. Step 6: Final answer
    x = 46,582.55

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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.