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Finding the Fourth Proportional to 281,700.99, 422,462.29 and 92,117.56

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Solution

The fourth proportional to 281,700.99, 422,462.29 and 92,117.56 is: 138,147.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,700.99 : 422,462.29 = 92,117.56 : x
  2. Step 2: Convert to fraction form
    281,700.99/422,462.29 = 92,117.56/x
  3. Step 3: Cross multiply
    281,700.99x = 422,462.29 × 92,117.56
  4. Step 4: Simplify right side
    281,700.99x = 38,916,195,346.81
  5. Step 5: Solve for x
    x = 38,916,195,346.81/281,700.99
  6. Step 6: Final answer
    x = 138,147.17

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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.