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Finding the Fourth Proportional to 343,540.87, 474,087.60 and 190,582.09

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Solution

The fourth proportional to 343,540.87, 474,087.60 and 190,582.09 is: 263,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,540.87 : 474,087.60 = 190,582.09 : x
  2. Step 2: Convert to fraction form
    343,540.87/474,087.60 = 190,582.09/x
  3. Step 3: Cross multiply
    343,540.87x = 474,087.60 × 190,582.09
  4. Step 4: Simplify right side
    343,540.87x = 90,352,604,465.87
  5. Step 5: Solve for x
    x = 90,352,604,465.87/343,540.87
  6. Step 6: Final answer
    x = 263,003.95

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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.