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Finding the Fourth Proportional to 109,994.59, 164,992.49 and 39,872.08

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Solution

The fourth proportional to 109,994.59, 164,992.49 and 39,872.08 is: 59,808.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,994.59 : 164,992.49 = 39,872.08 : x
  2. Step 2: Convert to fraction form
    109,994.59/164,992.49 = 39,872.08/x
  3. Step 3: Cross multiply
    109,994.59x = 164,992.49 × 39,872.08
  4. Step 4: Simplify right side
    109,994.59x = 6,578,592,736.36
  5. Step 5: Solve for x
    x = 6,578,592,736.36/109,994.59
  6. Step 6: Final answer
    x = 59,808.33

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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.