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Finding the Fourth Proportional to 281,699.99, 422,460.79 and 92,116.56

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Solution

The fourth proportional to 281,699.99, 422,460.79 and 92,116.56 is: 138,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,699.99 : 422,460.79 = 92,116.56 : x
  2. Step 2: Convert to fraction form
    281,699.99/422,460.79 = 92,116.56/x
  3. Step 3: Cross multiply
    281,699.99x = 422,460.79 × 92,116.56
  4. Step 4: Simplify right side
    281,699.99x = 38,915,634,479.39
  5. Step 5: Solve for x
    x = 38,915,634,479.39/281,699.99
  6. Step 6: Final answer
    x = 138,145.67

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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.