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Finding the Fourth Proportional to 139,808.94, 192,961.35 and 82,444.77

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Solution

The fourth proportional to 139,808.94, 192,961.35 and 82,444.77 is: 113,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,808.94 : 192,961.35 = 82,444.77 : x
  2. Step 2: Convert to fraction form
    139,808.94/192,961.35 = 82,444.77/x
  3. Step 3: Cross multiply
    139,808.94x = 192,961.35 × 82,444.77
  4. Step 4: Simplify right side
    139,808.94x = 15,908,654,119.64
  5. Step 5: Solve for x
    x = 15,908,654,119.64/139,808.94
  6. Step 6: Final answer
    x = 113,788.53

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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.