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Finding the Fourth Proportional to 80,565.51, 111,226.74 and 53,796.63

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Solution

The fourth proportional to 80,565.51, 111,226.74 and 53,796.63 is: 74,270.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,565.51 : 111,226.74 = 53,796.63 : x
  2. Step 2: Convert to fraction form
    80,565.51/111,226.74 = 53,796.63/x
  3. Step 3: Cross multiply
    80,565.51x = 111,226.74 × 53,796.63
  4. Step 4: Simplify right side
    80,565.51x = 5,983,623,777.89
  5. Step 5: Solve for x
    x = 5,983,623,777.89/80,565.51
  6. Step 6: Final answer
    x = 74,270.29

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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.