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Finding the Fourth Proportional to 246,478.41, 340,143.50 and 139,048.11

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Solution

The fourth proportional to 246,478.41, 340,143.50 and 139,048.11 is: 191,888.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,478.41 : 340,143.50 = 139,048.11 : x
  2. Step 2: Convert to fraction form
    246,478.41/340,143.50 = 139,048.11/x
  3. Step 3: Cross multiply
    246,478.41x = 340,143.50 × 139,048.11
  4. Step 4: Simplify right side
    246,478.41x = 47,296,310,803.79
  5. Step 5: Solve for x
    x = 47,296,310,803.79/246,478.41
  6. Step 6: Final answer
    x = 191,888.25

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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.