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Finding the Fourth Proportional to 246,409.61, 340,107.22 and 139,041.58

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Solution

The fourth proportional to 246,409.61, 340,107.22 and 139,041.58 is: 191,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,409.61 : 340,107.22 = 139,041.58 : x
  2. Step 2: Convert to fraction form
    246,409.61/340,107.22 = 139,041.58/x
  3. Step 3: Cross multiply
    246,409.61x = 340,107.22 × 139,041.58
  4. Step 4: Simplify right side
    246,409.61x = 47,289,045,238.21
  5. Step 5: Solve for x
    x = 47,289,045,238.21/246,409.61
  6. Step 6: Final answer
    x = 191,912.34

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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.