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Finding the Fourth Proportional to 341,994, 512,991.18 and 92,676

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Solution

The fourth proportional to 341,994, 512,991.18 and 92,676 is: 139,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,994 : 512,991.18 = 92,676 : x
  2. Step 2: Convert to fraction form
    341,994/512,991.18 = 92,676/x
  3. Step 3: Cross multiply
    341,994x = 512,991.18 × 92,676
  4. Step 4: Simplify right side
    341,994x = 47,541,970,597.68
  5. Step 5: Solve for x
    x = 47,541,970,597.68/341,994
  6. Step 6: Final answer
    x = 139,014.05

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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.