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Finding the Fourth Proportional to 95,136.40, 142,704.60 and 28,586.80

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Solution

The fourth proportional to 95,136.40, 142,704.60 and 28,586.80 is: 42,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,136.40 : 142,704.60 = 28,586.80 : x
  2. Step 2: Convert to fraction form
    95,136.40/142,704.60 = 28,586.80/x
  3. Step 3: Cross multiply
    95,136.40x = 142,704.60 × 28,586.80
  4. Step 4: Simplify right side
    95,136.40x = 4,079,467,859.28
  5. Step 5: Solve for x
    x = 4,079,467,859.28/95,136.40
  6. Step 6: Final answer
    x = 42,880.20

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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.