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Finding the Fourth Proportional to 368,060.90, 507,909.20 and 206,912.52

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Solution

The fourth proportional to 368,060.90, 507,909.20 and 206,912.52 is: 285,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,060.90 : 507,909.20 = 206,912.52 : x
  2. Step 2: Convert to fraction form
    368,060.90/507,909.20 = 206,912.52/x
  3. Step 3: Cross multiply
    368,060.90x = 507,909.20 × 206,912.52
  4. Step 4: Simplify right side
    368,060.90x = 105,092,771,468.62
  5. Step 5: Solve for x
    x = 105,092,771,468.62/368,060.90
  6. Step 6: Final answer
    x = 285,530.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.