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Finding the Fourth Proportional to 413,695.80, 620,850.90 and 164,556.60

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Solution

The fourth proportional to 413,695.80, 620,850.90 and 164,556.60 is: 246,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,695.80 : 620,850.90 = 164,556.60 : x
  2. Step 2: Convert to fraction form
    413,695.80/620,850.90 = 164,556.60/x
  3. Step 3: Cross multiply
    413,695.80x = 620,850.90 × 164,556.60
  4. Step 4: Simplify right side
    413,695.80x = 102,165,113,210.94
  5. Step 5: Solve for x
    x = 102,165,113,210.94/413,695.80
  6. Step 6: Final answer
    x = 246,957.10

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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.