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Finding the Fourth Proportional to 96,395.60, 144,586.20 and 40,221.20

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Solution

The fourth proportional to 96,395.60, 144,586.20 and 40,221.20 is: 60,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,395.60 : 144,586.20 = 40,221.20 : x
  2. Step 2: Convert to fraction form
    96,395.60/144,586.20 = 40,221.20/x
  3. Step 3: Cross multiply
    96,395.60x = 144,586.20 × 40,221.20
  4. Step 4: Simplify right side
    96,395.60x = 5,815,430,467.44
  5. Step 5: Solve for x
    x = 5,815,430,467.44/96,395.60
  6. Step 6: Final answer
    x = 60,328.80

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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.