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Finding the Fourth Proportional to 43,141.55, 64,720.49 and 16,844.63

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Solution

The fourth proportional to 43,141.55, 64,720.49 and 16,844.63 is: 25,270.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,141.55 : 64,720.49 = 16,844.63 : x
  2. Step 2: Convert to fraction form
    43,141.55/64,720.49 = 16,844.63/x
  3. Step 3: Cross multiply
    43,141.55x = 64,720.49 × 16,844.63
  4. Step 4: Simplify right side
    43,141.55x = 1,090,192,299.64
  5. Step 5: Solve for x
    x = 1,090,192,299.64/43,141.55
  6. Step 6: Final answer
    x = 25,270.13

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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.