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Finding the Fourth Proportional to 246,290.88, 369,475.20 and 80,040

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Solution

The fourth proportional to 246,290.88, 369,475.20 and 80,040 is: 120,072.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,290.88 : 369,475.20 = 80,040 : x
  2. Step 2: Convert to fraction form
    246,290.88/369,475.20 = 80,040/x
  3. Step 3: Cross multiply
    246,290.88x = 369,475.20 × 80,040
  4. Step 4: Simplify right side
    246,290.88x = 29,572,795,008
  5. Step 5: Solve for x
    x = 29,572,795,008/246,290.88
  6. Step 6: Final answer
    x = 120,072.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.