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Finding the Fourth Proportional to 246,410.71, 340,046.30 and 138,980.41

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Solution

The fourth proportional to 246,410.71, 340,046.30 and 138,980.41 is: 191,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,410.71 : 340,046.30 = 138,980.41 : x
  2. Step 2: Convert to fraction form
    246,410.71/340,046.30 = 138,980.41/x
  3. Step 3: Cross multiply
    246,410.71x = 340,046.30 × 138,980.41
  4. Step 4: Simplify right side
    246,410.71x = 47,259,773,690.32
  5. Step 5: Solve for x
    x = 47,259,773,690.32/246,410.71
  6. Step 6: Final answer
    x = 191,792.70

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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.