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Finding the Fourth Proportional to 222,293.89, 306,765.53 and 120,319.32

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Solution

The fourth proportional to 222,293.89, 306,765.53 and 120,319.32 is: 166,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,293.89 : 306,765.53 = 120,319.32 : x
  2. Step 2: Convert to fraction form
    222,293.89/306,765.53 = 120,319.32/x
  3. Step 3: Cross multiply
    222,293.89x = 306,765.53 × 120,319.32
  4. Step 4: Simplify right side
    222,293.89x = 36,909,821,036.75
  5. Step 5: Solve for x
    x = 36,909,821,036.75/222,293.89
  6. Step 6: Final answer
    x = 166,040.65

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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.