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Finding the Fourth Proportional to 80,392, 110,940.96 and 46,864.48

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Solution

The fourth proportional to 80,392, 110,940.96 and 46,864.48 is: 64,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,392 : 110,940.96 = 46,864.48 : x
  2. Step 2: Convert to fraction form
    80,392/110,940.96 = 46,864.48/x
  3. Step 3: Cross multiply
    80,392x = 110,940.96 × 46,864.48
  4. Step 4: Simplify right side
    80,392x = 5,199,190,401.10
  5. Step 5: Solve for x
    x = 5,199,190,401.10/80,392
  6. Step 6: Final answer
    x = 64,672.98

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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.