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Finding the Fourth Proportional to 281,253, 421,791.99 and 94,220.76

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Solution

The fourth proportional to 281,253, 421,791.99 and 94,220.76 is: 141,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,253 : 421,791.99 = 94,220.76 : x
  2. Step 2: Convert to fraction form
    281,253/421,791.99 = 94,220.76/x
  3. Step 3: Cross multiply
    281,253x = 421,791.99 × 94,220.76
  4. Step 4: Simplify right side
    281,253x = 39,741,561,859.71
  5. Step 5: Solve for x
    x = 39,741,561,859.71/281,253
  6. Step 6: Final answer
    x = 141,301.82

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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.