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Finding the Fourth Proportional to 75,176.37, 103,739.54 and 43,343.37

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Solution

The fourth proportional to 75,176.37, 103,739.54 and 43,343.37 is: 59,811.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,176.37 : 103,739.54 = 43,343.37 : x
  2. Step 2: Convert to fraction form
    75,176.37/103,739.54 = 43,343.37/x
  3. Step 3: Cross multiply
    75,176.37x = 103,739.54 × 43,343.37
  4. Step 4: Simplify right side
    75,176.37x = 4,496,421,049.13
  5. Step 5: Solve for x
    x = 4,496,421,049.13/75,176.37
  6. Step 6: Final answer
    x = 59,811.63

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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.