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Finding the Fourth Proportional to 188,923.70, 283,713.60 and 100,350.20

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Solution

The fourth proportional to 188,923.70, 283,713.60 and 100,350.20 is: 150,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,923.70 : 283,713.60 = 100,350.20 : x
  2. Step 2: Convert to fraction form
    188,923.70/283,713.60 = 100,350.20/x
  3. Step 3: Cross multiply
    188,923.70x = 283,713.60 × 100,350.20
  4. Step 4: Simplify right side
    188,923.70x = 28,470,716,502.72
  5. Step 5: Solve for x
    x = 28,470,716,502.72/188,923.70
  6. Step 6: Final answer
    x = 150,699.55

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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.