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Finding the Fourth Proportional to 218,293.80, 301,262.94 and 122,794.80

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Solution

The fourth proportional to 218,293.80, 301,262.94 and 122,794.80 is: 169,466.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,293.80 : 301,262.94 = 122,794.80 : x
  2. Step 2: Convert to fraction form
    218,293.80/301,262.94 = 122,794.80/x
  3. Step 3: Cross multiply
    218,293.80x = 301,262.94 × 122,794.80
  4. Step 4: Simplify right side
    218,293.80x = 36,993,522,464.71
  5. Step 5: Solve for x
    x = 36,993,522,464.71/218,293.80
  6. Step 6: Final answer
    x = 169,466.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.