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Finding the Fourth Proportional to 343,245.80, 514,907.10 and 106,586.60

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Solution

The fourth proportional to 343,245.80, 514,907.10 and 106,586.60 is: 159,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,245.80 : 514,907.10 = 106,586.60 : x
  2. Step 2: Convert to fraction form
    343,245.80/514,907.10 = 106,586.60/x
  3. Step 3: Cross multiply
    343,245.80x = 514,907.10 × 106,586.60
  4. Step 4: Simplify right side
    343,245.80x = 54,882,197,104.86
  5. Step 5: Solve for x
    x = 54,882,197,104.86/343,245.80
  6. Step 6: Final answer
    x = 159,891.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.