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Finding the Fourth Proportional to 378,593.98, 568,000.52 and 122,421.08

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Solution

The fourth proportional to 378,593.98, 568,000.52 and 122,421.08 is: 183,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,593.98 : 568,000.52 = 122,421.08 : x
  2. Step 2: Convert to fraction form
    378,593.98/568,000.52 = 122,421.08/x
  3. Step 3: Cross multiply
    378,593.98x = 568,000.52 × 122,421.08
  4. Step 4: Simplify right side
    378,593.98x = 69,535,236,486.86
  5. Step 5: Solve for x
    x = 69,535,236,486.86/378,593.98
  6. Step 6: Final answer
    x = 183,667.04

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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.