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Finding the Fourth Proportional to 343,260.40, 514,583.40 and 132,828.40

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Solution

The fourth proportional to 343,260.40, 514,583.40 and 132,828.40 is: 199,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,260.40 : 514,583.40 = 132,828.40 : x
  2. Step 2: Convert to fraction form
    343,260.40/514,583.40 = 132,828.40/x
  3. Step 3: Cross multiply
    343,260.40x = 514,583.40 × 132,828.40
  4. Step 4: Simplify right side
    343,260.40x = 68,351,289,688.56
  5. Step 5: Solve for x
    x = 68,351,289,688.56/343,260.40
  6. Step 6: Final answer
    x = 199,123.73

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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.