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Finding the Fourth Proportional to 126,412.56, 189,674.16 and 59,900.16

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Solution

The fourth proportional to 126,412.56, 189,674.16 and 59,900.16 is: 89,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,412.56 : 189,674.16 = 59,900.16 : x
  2. Step 2: Convert to fraction form
    126,412.56/189,674.16 = 59,900.16/x
  3. Step 3: Cross multiply
    126,412.56x = 189,674.16 × 59,900.16
  4. Step 4: Simplify right side
    126,412.56x = 11,361,512,531.87
  5. Step 5: Solve for x
    x = 11,361,512,531.87/126,412.56
  6. Step 6: Final answer
    x = 89,876.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.