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Finding the Fourth Proportional to 343,244.40, 514,559.40 and 132,812.40

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Solution

The fourth proportional to 343,244.40, 514,559.40 and 132,812.40 is: 199,099.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,244.40 : 514,559.40 = 132,812.40 : x
  2. Step 2: Convert to fraction form
    343,244.40/514,559.40 = 132,812.40/x
  3. Step 3: Cross multiply
    343,244.40x = 514,559.40 × 132,812.40
  4. Step 4: Simplify right side
    343,244.40x = 68,339,868,856.56
  5. Step 5: Solve for x
    x = 68,339,868,856.56/343,244.40
  6. Step 6: Final answer
    x = 199,099.73

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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.