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Finding the Fourth Proportional to 191,183.70, 286,782.85 and 71,270.49

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Solution

The fourth proportional to 191,183.70, 286,782.85 and 71,270.49 is: 106,908.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,183.70 : 286,782.85 = 71,270.49 : x
  2. Step 2: Convert to fraction form
    191,183.70/286,782.85 = 71,270.49/x
  3. Step 3: Cross multiply
    191,183.70x = 286,782.85 × 71,270.49
  4. Step 4: Simplify right side
    191,183.70x = 20,439,154,243.10
  5. Step 5: Solve for x
    x = 20,439,154,243.10/191,183.70
  6. Step 6: Final answer
    x = 106,908.46

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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.