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Finding the Fourth Proportional to 222,460.79, 306,749.90 and 141,760.49

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Solution

The fourth proportional to 222,460.79, 306,749.90 and 141,760.49 is: 195,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,460.79 : 306,749.90 = 141,760.49 : x
  2. Step 2: Convert to fraction form
    222,460.79/306,749.90 = 141,760.49/x
  3. Step 3: Cross multiply
    222,460.79x = 306,749.90 × 141,760.49
  4. Step 4: Simplify right side
    222,460.79x = 43,485,015,039.21
  5. Step 5: Solve for x
    x = 43,485,015,039.21/222,460.79
  6. Step 6: Final answer
    x = 195,472.72

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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.