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Finding the Fourth Proportional to 313,499.55, 470,249.33 and 91,883.55

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Solution

The fourth proportional to 313,499.55, 470,249.33 and 91,883.55 is: 137,825.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,499.55 : 470,249.33 = 91,883.55 : x
  2. Step 2: Convert to fraction form
    313,499.55/470,249.33 = 91,883.55/x
  3. Step 3: Cross multiply
    313,499.55x = 470,249.33 × 91,883.55
  4. Step 4: Simplify right side
    313,499.55x = 43,208,177,366.10
  5. Step 5: Solve for x
    x = 43,208,177,366.10/313,499.55
  6. Step 6: Final answer
    x = 137,825.33

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Similar ratio
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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.