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Finding the Fourth Proportional to 54,240.60, 81,353.40 and 16,826.40

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Solution

The fourth proportional to 54,240.60, 81,353.40 and 16,826.40 is: 25,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,240.60 : 81,353.40 = 16,826.40 : x
  2. Step 2: Convert to fraction form
    54,240.60/81,353.40 = 16,826.40/x
  3. Step 3: Cross multiply
    54,240.60x = 81,353.40 × 16,826.40
  4. Step 4: Simplify right side
    54,240.60x = 1,368,884,849.76
  5. Step 5: Solve for x
    x = 1,368,884,849.76/54,240.60
  6. Step 6: Final answer
    x = 25,237.27

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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.