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Finding the Fourth Proportional to 54,579.51, 81,712.53 and 48,881.16

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Solution

The fourth proportional to 54,579.51, 81,712.53 and 48,881.16 is: 73,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,579.51 : 81,712.53 = 48,881.16 : x
  2. Step 2: Convert to fraction form
    54,579.51/81,712.53 = 48,881.16/x
  3. Step 3: Cross multiply
    54,579.51x = 81,712.53 × 48,881.16
  4. Step 4: Simplify right side
    54,579.51x = 3,994,203,252.93
  5. Step 5: Solve for x
    x = 3,994,203,252.93/54,579.51
  6. Step 6: Final answer
    x = 73,181.37

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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.