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Finding the Fourth Proportional to 246,491.48, 340,157.22 and 139,061.54

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Solution

The fourth proportional to 246,491.48, 340,157.22 and 139,061.54 is: 191,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,491.48 : 340,157.22 = 139,061.54 : x
  2. Step 2: Convert to fraction form
    246,491.48/340,157.22 = 139,061.54/x
  3. Step 3: Cross multiply
    246,491.48x = 340,157.22 × 139,061.54
  4. Step 4: Simplify right side
    246,491.48x = 47,302,786,855.32
  5. Step 5: Solve for x
    x = 47,302,786,855.32/246,491.48
  6. Step 6: Final answer
    x = 191,904.35

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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.