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Finding the Fourth Proportional to 260,679.06, 359,653.49 and 145,940.84

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Solution

The fourth proportional to 260,679.06, 359,653.49 and 145,940.84 is: 201,351.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,679.06 : 359,653.49 = 145,940.84 : x
  2. Step 2: Convert to fraction form
    260,679.06/359,653.49 = 145,940.84/x
  3. Step 3: Cross multiply
    260,679.06x = 359,653.49 × 145,940.84
  4. Step 4: Simplify right side
    260,679.06x = 52,488,129,911.56
  5. Step 5: Solve for x
    x = 52,488,129,911.56/260,679.06
  6. Step 6: Final answer
    x = 201,351.54

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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.