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Finding the Fourth Proportional to 361,705.68, 542,447.69 and 250,103.07

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Solution

The fourth proportional to 361,705.68, 542,447.69 and 250,103.07 is: 375,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,705.68 : 542,447.69 = 250,103.07 : x
  2. Step 2: Convert to fraction form
    361,705.68/542,447.69 = 250,103.07/x
  3. Step 3: Cross multiply
    361,705.68x = 542,447.69 × 250,103.07
  4. Step 4: Simplify right side
    361,705.68x = 135,667,831,332.89
  5. Step 5: Solve for x
    x = 135,667,831,332.89/361,705.68
  6. Step 6: Final answer
    x = 375,077.97

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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.