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Finding the Fourth Proportional to 260,079.63, 358,910.31 and 140,847.63

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Solution

The fourth proportional to 260,079.63, 358,910.31 and 140,847.63 is: 194,369.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,079.63 : 358,910.31 = 140,847.63 : x
  2. Step 2: Convert to fraction form
    260,079.63/358,910.31 = 140,847.63/x
  3. Step 3: Cross multiply
    260,079.63x = 358,910.31 × 140,847.63
  4. Step 4: Simplify right side
    260,079.63x = 50,551,666,546.07
  5. Step 5: Solve for x
    x = 50,551,666,546.07/260,079.63
  6. Step 6: Final answer
    x = 194,369.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.