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Finding the Fourth Proportional to 80,387.61, 110,933.19 and 46,393.44

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Solution

The fourth proportional to 80,387.61, 110,933.19 and 46,393.44 is: 64,021.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,387.61 : 110,933.19 = 46,393.44 : x
  2. Step 2: Convert to fraction form
    80,387.61/110,933.19 = 46,393.44/x
  3. Step 3: Cross multiply
    80,387.61x = 110,933.19 × 46,393.44
  4. Step 4: Simplify right side
    80,387.61x = 5,146,572,294.27
  5. Step 5: Solve for x
    x = 5,146,572,294.27/80,387.61
  6. Step 6: Final answer
    x = 64,021.96

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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.