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Finding the Fourth Proportional to 260,626.50, 359,662.14 and 147,449.25

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Solution

The fourth proportional to 260,626.50, 359,662.14 and 147,449.25 is: 203,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,626.50 : 359,662.14 = 147,449.25 : x
  2. Step 2: Convert to fraction form
    260,626.50/359,662.14 = 147,449.25/x
  3. Step 3: Cross multiply
    260,626.50x = 359,662.14 × 147,449.25
  4. Step 4: Simplify right side
    260,626.50x = 53,031,912,796.40
  5. Step 5: Solve for x
    x = 53,031,912,796.40/260,626.50
  6. Step 6: Final answer
    x = 203,478.59

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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.