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Finding the Fourth Proportional to 343,621.71, 474,200.55 and 188,571.96

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Solution

The fourth proportional to 343,621.71, 474,200.55 and 188,571.96 is: 260,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,621.71 : 474,200.55 = 188,571.96 : x
  2. Step 2: Convert to fraction form
    343,621.71/474,200.55 = 188,571.96/x
  3. Step 3: Cross multiply
    343,621.71x = 474,200.55 × 188,571.96
  4. Step 4: Simplify right side
    343,621.71x = 89,420,927,146.58
  5. Step 5: Solve for x
    x = 89,420,927,146.58/343,621.71
  6. Step 6: Final answer
    x = 260,230.73

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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.