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Finding the Fourth Proportional to 159,783.05, 239,600.77 and 59,871.78

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Solution

The fourth proportional to 159,783.05, 239,600.77 and 59,871.78 is: 89,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,783.05 : 239,600.77 = 59,871.78 : x
  2. Step 2: Convert to fraction form
    159,783.05/239,600.77 = 59,871.78/x
  3. Step 3: Cross multiply
    159,783.05x = 239,600.77 × 59,871.78
  4. Step 4: Simplify right side
    159,783.05x = 14,345,324,439.59
  5. Step 5: Solve for x
    x = 14,345,324,439.59/159,783.05
  6. Step 6: Final answer
    x = 89,780.01

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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.