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Finding the Fourth Proportional to 343,650.97, 474,240.91 and 190,689.76

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Solution

The fourth proportional to 343,650.97, 474,240.91 and 190,689.76 is: 263,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,650.97 : 474,240.91 = 190,689.76 : x
  2. Step 2: Convert to fraction form
    343,650.97/474,240.91 = 190,689.76/x
  3. Step 3: Cross multiply
    343,650.97x = 474,240.91 × 190,689.76
  4. Step 4: Simplify right side
    343,650.97x = 90,432,882,938.88
  5. Step 5: Solve for x
    x = 90,432,882,938.88/343,650.97
  6. Step 6: Final answer
    x = 263,153.29

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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.