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Finding the Fourth Proportional to 222,288.52, 306,760.60 and 126,800.86

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Solution

The fourth proportional to 222,288.52, 306,760.60 and 126,800.86 is: 174,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,288.52 : 306,760.60 = 126,800.86 : x
  2. Step 2: Convert to fraction form
    222,288.52/306,760.60 = 126,800.86/x
  3. Step 3: Cross multiply
    222,288.52x = 306,760.60 × 126,800.86
  4. Step 4: Simplify right side
    222,288.52x = 38,897,507,894.12
  5. Step 5: Solve for x
    x = 38,897,507,894.12/222,288.52
  6. Step 6: Final answer
    x = 174,986.58

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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.