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Finding the Fourth Proportional to 246,274.50, 339,851.10 and 138,842.98

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Solution

The fourth proportional to 246,274.50, 339,851.10 and 138,842.98 is: 191,598.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,274.50 : 339,851.10 = 138,842.98 : x
  2. Step 2: Convert to fraction form
    246,274.50/339,851.10 = 138,842.98/x
  3. Step 3: Cross multiply
    246,274.50x = 339,851.10 × 138,842.98
  4. Step 4: Simplify right side
    246,274.50x = 47,185,939,480.28
  5. Step 5: Solve for x
    x = 47,185,939,480.28/246,274.50
  6. Step 6: Final answer
    x = 191,598.97

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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.