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Finding the Fourth Proportional to 273,240.78, 376,943.58 and 177,712.62

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Solution

The fourth proportional to 273,240.78, 376,943.58 and 177,712.62 is: 245,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,240.78 : 376,943.58 = 177,712.62 : x
  2. Step 2: Convert to fraction form
    273,240.78/376,943.58 = 177,712.62/x
  3. Step 3: Cross multiply
    273,240.78x = 376,943.58 × 177,712.62
  4. Step 4: Simplify right side
    273,240.78x = 66,987,631,860.40
  5. Step 5: Solve for x
    x = 66,987,631,860.40/273,240.78
  6. Step 6: Final answer
    x = 245,159.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.