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Finding the Fourth Proportional to 54,378.99, 81,558.77 and 34,598.79

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Solution

The fourth proportional to 54,378.99, 81,558.77 and 34,598.79 is: 51,892.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,378.99 : 81,558.77 = 34,598.79 : x
  2. Step 2: Convert to fraction form
    54,378.99/81,558.77 = 34,598.79/x
  3. Step 3: Cross multiply
    54,378.99x = 81,558.77 × 34,598.79
  4. Step 4: Simplify right side
    54,378.99x = 2,821,834,873.29
  5. Step 5: Solve for x
    x = 2,821,834,873.29/54,378.99
  6. Step 6: Final answer
    x = 51,892.00

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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.