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Finding the Fourth Proportional to 378,950.77, 568,603.34 and 165,691.00

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Solution

The fourth proportional to 378,950.77, 568,603.34 and 165,691.00 is: 248,613.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,950.77 : 568,603.34 = 165,691.00 : x
  2. Step 2: Convert to fraction form
    378,950.77/568,603.34 = 165,691.00/x
  3. Step 3: Cross multiply
    378,950.77x = 568,603.34 × 165,691.00
  4. Step 4: Simplify right side
    378,950.77x = 94,212,455,000.66
  5. Step 5: Solve for x
    x = 94,212,455,000.66/378,950.77
  6. Step 6: Final answer
    x = 248,613.97

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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.