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Finding the Fourth Proportional to 159,793.45, 239,672.47 and 57,206.70

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Solution

The fourth proportional to 159,793.45, 239,672.47 and 57,206.70 is: 85,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,793.45 : 239,672.47 = 57,206.70 : x
  2. Step 2: Convert to fraction form
    159,793.45/239,672.47 = 57,206.70/x
  3. Step 3: Cross multiply
    159,793.45x = 239,672.47 × 57,206.70
  4. Step 4: Simplify right side
    159,793.45x = 13,710,871,089.55
  5. Step 5: Solve for x
    x = 13,710,871,089.55/159,793.45
  6. Step 6: Final answer
    x = 85,803.71

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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.