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Finding the Fourth Proportional to 341,986.76, 471,940.74 and 191,083.88

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Solution

The fourth proportional to 341,986.76, 471,940.74 and 191,083.88 is: 263,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,986.76 : 471,940.74 = 191,083.88 : x
  2. Step 2: Convert to fraction form
    341,986.76/471,940.74 = 191,083.88/x
  3. Step 3: Cross multiply
    341,986.76x = 471,940.74 × 191,083.88
  4. Step 4: Simplify right side
    341,986.76x = 90,180,267,729.27
  5. Step 5: Solve for x
    x = 90,180,267,729.27/341,986.76
  6. Step 6: Final answer
    x = 263,695.20

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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.