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Finding the Fourth Proportional to 80,208.78, 110,717.28 and 46,674.78

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Solution

The fourth proportional to 80,208.78, 110,717.28 and 46,674.78 is: 64,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,208.78 : 110,717.28 = 46,674.78 : x
  2. Step 2: Convert to fraction form
    80,208.78/110,717.28 = 46,674.78/x
  3. Step 3: Cross multiply
    80,208.78x = 110,717.28 × 46,674.78
  4. Step 4: Simplify right side
    80,208.78x = 5,167,704,686.20
  5. Step 5: Solve for x
    x = 5,167,704,686.20/80,208.78
  6. Step 6: Final answer
    x = 64,428.17

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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.