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Finding the Fourth Proportional to 77,794.20, 116,399.70 and 51,550.20

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Solution

The fourth proportional to 77,794.20, 116,399.70 and 51,550.20 is: 77,132.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,794.20 : 116,399.70 = 51,550.20 : x
  2. Step 2: Convert to fraction form
    77,794.20/116,399.70 = 51,550.20/x
  3. Step 3: Cross multiply
    77,794.20x = 116,399.70 × 51,550.20
  4. Step 4: Simplify right side
    77,794.20x = 6,000,427,814.94
  5. Step 5: Solve for x
    x = 6,000,427,814.94/77,794.20
  6. Step 6: Final answer
    x = 77,132.07

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1.5x scale

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.