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Finding the Fourth Proportional to 246,394.65, 340,024.56 and 138,964.45

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Solution

The fourth proportional to 246,394.65, 340,024.56 and 138,964.45 is: 191,770.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,394.65 : 340,024.56 = 138,964.45 : x
  2. Step 2: Convert to fraction form
    246,394.65/340,024.56 = 138,964.45/x
  3. Step 3: Cross multiply
    246,394.65x = 340,024.56 × 138,964.45
  4. Step 4: Simplify right side
    246,394.65x = 47,251,325,966.89
  5. Step 5: Solve for x
    x = 47,251,325,966.89/246,394.65
  6. Step 6: Final answer
    x = 191,770.91

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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.