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Finding the Fourth Proportional to 228,735.42, 343,161.21 and 68,810.46

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Solution

The fourth proportional to 228,735.42, 343,161.21 and 68,810.46 is: 103,233.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,735.42 : 343,161.21 = 68,810.46 : x
  2. Step 2: Convert to fraction form
    228,735.42/343,161.21 = 68,810.46/x
  3. Step 3: Cross multiply
    228,735.42x = 343,161.21 × 68,810.46
  4. Step 4: Simplify right side
    228,735.42x = 23,613,080,714.26
  5. Step 5: Solve for x
    x = 23,613,080,714.26/228,735.42
  6. Step 6: Final answer
    x = 103,233.16

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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.