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Finding the Fourth Proportional to 341,994.77, 512,992.29 and 89,274.56

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Solution

The fourth proportional to 341,994.77, 512,992.29 and 89,274.56 is: 133,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,994.77 : 512,992.29 = 89,274.56 : x
  2. Step 2: Convert to fraction form
    341,994.77/512,992.29 = 89,274.56/x
  3. Step 3: Cross multiply
    341,994.77x = 512,992.29 × 89,274.56
  4. Step 4: Simplify right side
    341,994.77x = 45,797,160,973.14
  5. Step 5: Solve for x
    x = 45,797,160,973.14/341,994.77
  6. Step 6: Final answer
    x = 133,911.88

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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.