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Finding the Fourth Proportional to 260,371.91, 359,296.28 and 145,630.67

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Solution

The fourth proportional to 260,371.91, 359,296.28 and 145,630.67 is: 200,960.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,371.91 : 359,296.28 = 145,630.67 : x
  2. Step 2: Convert to fraction form
    260,371.91/359,296.28 = 145,630.67/x
  3. Step 3: Cross multiply
    260,371.91x = 359,296.28 × 145,630.67
  4. Step 4: Simplify right side
    260,371.91x = 52,324,557,984.91
  5. Step 5: Solve for x
    x = 52,324,557,984.91/260,371.91
  6. Step 6: Final answer
    x = 200,960.84

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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.