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Finding the Fourth Proportional to 403,486.92, 605,230.38 and 123,001.74

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Solution

The fourth proportional to 403,486.92, 605,230.38 and 123,001.74 is: 184,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,486.92 : 605,230.38 = 123,001.74 : x
  2. Step 2: Convert to fraction form
    403,486.92/605,230.38 = 123,001.74/x
  3. Step 3: Cross multiply
    403,486.92x = 605,230.38 × 123,001.74
  4. Step 4: Simplify right side
    403,486.92x = 74,444,389,840.86
  5. Step 5: Solve for x
    x = 74,444,389,840.86/403,486.92
  6. Step 6: Final answer
    x = 184,502.61

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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.