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Finding the Fourth Proportional to 127,635.46, 191,481.74 and 38,895.91

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Solution

The fourth proportional to 127,635.46, 191,481.74 and 38,895.91 is: 58,352.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,635.46 : 191,481.74 = 38,895.91 : x
  2. Step 2: Convert to fraction form
    127,635.46/191,481.74 = 38,895.91/x
  3. Step 3: Cross multiply
    127,635.46x = 191,481.74 × 38,895.91
  4. Step 4: Simplify right side
    127,635.46x = 7,447,856,525.68
  5. Step 5: Solve for x
    x = 7,447,856,525.68/127,635.46
  6. Step 6: Final answer
    x = 58,352.57

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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.