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Finding the Fourth Proportional to 343,801.39, 515,807.67 and 164,116.11

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Solution

The fourth proportional to 343,801.39, 515,807.67 and 164,116.11 is: 246,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,801.39 : 515,807.67 = 164,116.11 : x
  2. Step 2: Convert to fraction form
    343,801.39/515,807.67 = 164,116.11/x
  3. Step 3: Cross multiply
    343,801.39x = 515,807.67 × 164,116.11
  4. Step 4: Simplify right side
    343,801.39x = 84,652,348,308.56
  5. Step 5: Solve for x
    x = 84,652,348,308.56/343,801.39
  6. Step 6: Final answer
    x = 246,224.57

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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.