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Finding the Fourth Proportional to 127,671.86, 191,538.12 and 64,336.34

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Solution

The fourth proportional to 127,671.86, 191,538.12 and 64,336.34 is: 96,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,671.86 : 191,538.12 = 64,336.34 : x
  2. Step 2: Convert to fraction form
    127,671.86/191,538.12 = 64,336.34/x
  3. Step 3: Cross multiply
    127,671.86x = 191,538.12 × 64,336.34
  4. Step 4: Simplify right side
    127,671.86x = 12,322,861,611.28
  5. Step 5: Solve for x
    x = 12,322,861,611.28/127,671.86
  6. Step 6: Final answer
    x = 96,519.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.