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Finding the Fourth Proportional to 135,957.34, 187,620.96 and 75,533.56

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Solution

The fourth proportional to 135,957.34, 187,620.96 and 75,533.56 is: 104,236.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,957.34 : 187,620.96 = 75,533.56 : x
  2. Step 2: Convert to fraction form
    135,957.34/187,620.96 = 75,533.56/x
  3. Step 3: Cross multiply
    135,957.34x = 187,620.96 × 75,533.56
  4. Step 4: Simplify right side
    135,957.34x = 14,171,679,039.42
  5. Step 5: Solve for x
    x = 14,171,679,039.42/135,957.34
  6. Step 6: Final answer
    x = 104,236.22

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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.