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Finding the Fourth Proportional to 386,739.96, 580,125.64 and 184,231.96

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Solution

The fourth proportional to 386,739.96, 580,125.64 and 184,231.96 is: 276,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,739.96 : 580,125.64 = 184,231.96 : x
  2. Step 2: Convert to fraction form
    386,739.96/580,125.64 = 184,231.96/x
  3. Step 3: Cross multiply
    386,739.96x = 580,125.64 × 184,231.96
  4. Step 4: Simplify right side
    386,739.96x = 106,877,683,703.45
  5. Step 5: Solve for x
    x = 106,877,683,703.45/386,739.96
  6. Step 6: Final answer
    x = 276,355.42

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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.