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Finding the Fourth Proportional to 246,384.81, 340,022.61 and 138,952.62

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Solution

The fourth proportional to 246,384.81, 340,022.61 and 138,952.62 is: 191,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,384.81 : 340,022.61 = 138,952.62 : x
  2. Step 2: Convert to fraction form
    246,384.81/340,022.61 = 138,952.62/x
  3. Step 3: Cross multiply
    246,384.81x = 340,022.61 × 138,952.62
  4. Step 4: Simplify right side
    246,384.81x = 47,247,032,518.74
  5. Step 5: Solve for x
    x = 47,247,032,518.74/246,384.81
  6. Step 6: Final answer
    x = 191,761.14

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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.