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Finding the Fourth Proportional to 483,881.10, 725,821.65 and 168,114.75

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Solution

The fourth proportional to 483,881.10, 725,821.65 and 168,114.75 is: 252,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,881.10 : 725,821.65 = 168,114.75 : x
  2. Step 2: Convert to fraction form
    483,881.10/725,821.65 = 168,114.75/x
  3. Step 3: Cross multiply
    483,881.10x = 725,821.65 × 168,114.75
  4. Step 4: Simplify right side
    483,881.10x = 122,021,325,234.34
  5. Step 5: Solve for x
    x = 122,021,325,234.34/483,881.10
  6. Step 6: Final answer
    x = 252,172.13

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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.