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Finding the Fourth Proportional to 450,874.79, 676,356.51 and 131,029.43

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Solution

The fourth proportional to 450,874.79, 676,356.51 and 131,029.43 is: 196,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,874.79 : 676,356.51 = 131,029.43 : x
  2. Step 2: Convert to fraction form
    450,874.79/676,356.51 = 131,029.43/x
  3. Step 3: Cross multiply
    450,874.79x = 676,356.51 × 131,029.43
  4. Step 4: Simplify right side
    450,874.79x = 88,622,604,600.31
  5. Step 5: Solve for x
    x = 88,622,604,600.31/450,874.79
  6. Step 6: Final answer
    x = 196,557.02

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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.