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Finding the Fourth Proportional to 562,168.10, 842,960.55 and 206,999.30

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Solution

The fourth proportional to 562,168.10, 842,960.55 and 206,999.30 is: 310,391.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,168.10 : 842,960.55 = 206,999.30 : x
  2. Step 2: Convert to fraction form
    562,168.10/842,960.55 = 206,999.30/x
  3. Step 3: Cross multiply
    562,168.10x = 842,960.55 × 206,999.30
  4. Step 4: Simplify right side
    562,168.10x = 174,492,243,777.62
  5. Step 5: Solve for x
    x = 174,492,243,777.62/562,168.10
  6. Step 6: Final answer
    x = 310,391.58

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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.