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Finding the Fourth Proportional to 93,118.82, 128,501.44 and 50,676.44

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Solution

The fourth proportional to 93,118.82, 128,501.44 and 50,676.44 is: 69,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,118.82 : 128,501.44 = 50,676.44 : x
  2. Step 2: Convert to fraction form
    93,118.82/128,501.44 = 50,676.44/x
  3. Step 3: Cross multiply
    93,118.82x = 128,501.44 × 50,676.44
  4. Step 4: Simplify right side
    93,118.82x = 6,511,994,744.88
  5. Step 5: Solve for x
    x = 6,511,994,744.88/93,118.82
  6. Step 6: Final answer
    x = 69,932.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.