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Finding the Fourth Proportional to 263,613.40, 395,420.10 and 164,080.60

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Solution

The fourth proportional to 263,613.40, 395,420.10 and 164,080.60 is: 246,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,613.40 : 395,420.10 = 164,080.60 : x
  2. Step 2: Convert to fraction form
    263,613.40/395,420.10 = 164,080.60/x
  3. Step 3: Cross multiply
    263,613.40x = 395,420.10 × 164,080.60
  4. Step 4: Simplify right side
    263,613.40x = 64,880,767,260.06
  5. Step 5: Solve for x
    x = 64,880,767,260.06/263,613.40
  6. Step 6: Final answer
    x = 246,120.90

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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.