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Finding the Fourth Proportional to 222,651.75, 307,278.86 and 122,069.19

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Solution

The fourth proportional to 222,651.75, 307,278.86 and 122,069.19 is: 168,466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,651.75 : 307,278.86 = 122,069.19 : x
  2. Step 2: Convert to fraction form
    222,651.75/307,278.86 = 122,069.19/x
  3. Step 3: Cross multiply
    222,651.75x = 307,278.86 × 122,069.19
  4. Step 4: Simplify right side
    222,651.75x = 37,509,281,544.32
  5. Step 5: Solve for x
    x = 37,509,281,544.32/222,651.75
  6. Step 6: Final answer
    x = 168,466.14

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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.