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Finding the Fourth Proportional to 135,807.91, 203,711.90 and 47,061.41

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Solution

The fourth proportional to 135,807.91, 203,711.90 and 47,061.41 is: 70,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,807.91 : 203,711.90 = 47,061.41 : x
  2. Step 2: Convert to fraction form
    135,807.91/203,711.90 = 47,061.41/x
  3. Step 3: Cross multiply
    135,807.91x = 203,711.90 × 47,061.41
  4. Step 4: Simplify right side
    135,807.91x = 9,586,967,993.91
  5. Step 5: Solve for x
    x = 9,586,967,993.91/135,807.91
  6. Step 6: Final answer
    x = 70,592.12

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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.