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Finding the Fourth Proportional to 108,198.40, 162,220.80 and 41,612.80

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Solution

The fourth proportional to 108,198.40, 162,220.80 and 41,612.80 is: 62,389.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,198.40 : 162,220.80 = 41,612.80 : x
  2. Step 2: Convert to fraction form
    108,198.40/162,220.80 = 41,612.80/x
  3. Step 3: Cross multiply
    108,198.40x = 162,220.80 × 41,612.80
  4. Step 4: Simplify right side
    108,198.40x = 6,750,461,706.24
  5. Step 5: Solve for x
    x = 6,750,461,706.24/108,198.40
  6. Step 6: Final answer
    x = 62,389.66

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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.