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Finding the Fourth Proportional to 75,558.84, 104,274.70 and 43,721.56

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Solution

The fourth proportional to 75,558.84, 104,274.70 and 43,721.56 is: 60,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,558.84 : 104,274.70 = 43,721.56 : x
  2. Step 2: Convert to fraction form
    75,558.84/104,274.70 = 43,721.56/x
  3. Step 3: Cross multiply
    75,558.84x = 104,274.70 × 43,721.56
  4. Step 4: Simplify right side
    75,558.84x = 4,559,052,552.53
  5. Step 5: Solve for x
    x = 4,559,052,552.53/75,558.84
  6. Step 6: Final answer
    x = 60,337.78

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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.