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Finding the Fourth Proportional to 56,142.59, 77,474.81 and 33,469.88

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Solution

The fourth proportional to 56,142.59, 77,474.81 and 33,469.88 is: 46,187.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,142.59 : 77,474.81 = 33,469.88 : x
  2. Step 2: Convert to fraction form
    56,142.59/77,474.81 = 33,469.88/x
  3. Step 3: Cross multiply
    56,142.59x = 77,474.81 × 33,469.88
  4. Step 4: Simplify right side
    56,142.59x = 2,593,072,039.00
  5. Step 5: Solve for x
    x = 2,593,072,039.00/56,142.59
  6. Step 6: Final answer
    x = 46,187.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.