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Finding the Fourth Proportional to 248,562.30, 343,143.27 and 168,411.90

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Solution

The fourth proportional to 248,562.30, 343,143.27 and 168,411.90 is: 232,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,562.30 : 343,143.27 = 168,411.90 : x
  2. Step 2: Convert to fraction form
    248,562.30/343,143.27 = 168,411.90/x
  3. Step 3: Cross multiply
    248,562.30x = 343,143.27 × 168,411.90
  4. Step 4: Simplify right side
    248,562.30x = 57,789,410,072.91
  5. Step 5: Solve for x
    x = 57,789,410,072.91/248,562.30
  6. Step 6: Final answer
    x = 232,494.67

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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.