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Finding the Fourth Proportional to 56,656.94, 78,190.41 and 37,503.73

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Solution

The fourth proportional to 56,656.94, 78,190.41 and 37,503.73 is: 51,757.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,656.94 : 78,190.41 = 37,503.73 : x
  2. Step 2: Convert to fraction form
    56,656.94/78,190.41 = 37,503.73/x
  3. Step 3: Cross multiply
    56,656.94x = 78,190.41 × 37,503.73
  4. Step 4: Simplify right side
    56,656.94x = 2,932,431,823.79
  5. Step 5: Solve for x
    x = 2,932,431,823.79/56,656.94
  6. Step 6: Final answer
    x = 51,757.69

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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.