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Finding the Fourth Proportional to 273,231.35, 409,874.37 and 83,689.53

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Solution

The fourth proportional to 273,231.35, 409,874.37 and 83,689.53 is: 125,542.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,231.35 : 409,874.37 = 83,689.53 : x
  2. Step 2: Convert to fraction form
    273,231.35/409,874.37 = 83,689.53/x
  3. Step 3: Cross multiply
    273,231.35x = 409,874.37 × 83,689.53
  4. Step 4: Simplify right side
    273,231.35x = 34,302,191,533.48
  5. Step 5: Solve for x
    x = 34,302,191,533.48/273,231.35
  6. Step 6: Final answer
    x = 125,542.66

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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.