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Finding the Fourth Proportional to 168,999.90, 253,403.85 and 63,822.30

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Solution

The fourth proportional to 168,999.90, 253,403.85 and 63,822.30 is: 95,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,999.90 : 253,403.85 = 63,822.30 : x
  2. Step 2: Convert to fraction form
    168,999.90/253,403.85 = 63,822.30/x
  3. Step 3: Cross multiply
    168,999.90x = 253,403.85 × 63,822.30
  4. Step 4: Simplify right side
    168,999.90x = 16,172,816,535.86
  5. Step 5: Solve for x
    x = 16,172,816,535.86/168,999.90
  6. Step 6: Final answer
    x = 95,697.20

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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.