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Finding the Fourth Proportional to 343,661.38, 474,255.39 and 190,700.17

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Solution

The fourth proportional to 343,661.38, 474,255.39 and 190,700.17 is: 263,167.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,661.38 : 474,255.39 = 190,700.17 : x
  2. Step 2: Convert to fraction form
    343,661.38/474,255.39 = 190,700.17/x
  3. Step 3: Cross multiply
    343,661.38x = 474,255.39 × 190,700.17
  4. Step 4: Simplify right side
    343,661.38x = 90,440,583,496.42
  5. Step 5: Solve for x
    x = 90,440,583,496.42/343,661.38
  6. Step 6: Final answer
    x = 263,167.72

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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.