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Finding the Fourth Proportional to 260,664.06, 391,018.88 and 73,675.56

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Solution

The fourth proportional to 260,664.06, 391,018.88 and 73,675.56 is: 110,519.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,664.06 : 391,018.88 = 73,675.56 : x
  2. Step 2: Convert to fraction form
    260,664.06/391,018.88 = 73,675.56/x
  3. Step 3: Cross multiply
    260,664.06x = 391,018.88 × 73,675.56
  4. Step 4: Simplify right side
    260,664.06x = 28,808,534,954.57
  5. Step 5: Solve for x
    x = 28,808,534,954.57/260,664.06
  6. Step 6: Final answer
    x = 110,519.78

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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.