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Finding the Fourth Proportional to 413,937.60, 620,906.40 and 164,619.60

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Solution

The fourth proportional to 413,937.60, 620,906.40 and 164,619.60 is: 246,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,937.60 : 620,906.40 = 164,619.60 : x
  2. Step 2: Convert to fraction form
    413,937.60/620,906.40 = 164,619.60/x
  3. Step 3: Cross multiply
    413,937.60x = 620,906.40 × 164,619.60
  4. Step 4: Simplify right side
    413,937.60x = 102,213,363,205.44
  5. Step 5: Solve for x
    x = 102,213,363,205.44/413,937.60
  6. Step 6: Final answer
    x = 246,929.40

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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.