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Finding the Fourth Proportional to 54,173.63, 81,230.67 and 16,723.40

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Solution

The fourth proportional to 54,173.63, 81,230.67 and 16,723.40 is: 25,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,173.63 : 81,230.67 = 16,723.40 : x
  2. Step 2: Convert to fraction form
    54,173.63/81,230.67 = 16,723.40/x
  3. Step 3: Cross multiply
    54,173.63x = 81,230.67 × 16,723.40
  4. Step 4: Simplify right side
    54,173.63x = 1,358,452,580.52
  5. Step 5: Solve for x
    x = 1,358,452,580.52/54,173.63
  6. Step 6: Final answer
    x = 25,075.90

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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.