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Finding the Fourth Proportional to 86,181.84, 118,933.79 and 52,196.67

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Solution

The fourth proportional to 86,181.84, 118,933.79 and 52,196.67 is: 72,033.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,181.84 : 118,933.79 = 52,196.67 : x
  2. Step 2: Convert to fraction form
    86,181.84/118,933.79 = 52,196.67/x
  3. Step 3: Cross multiply
    86,181.84x = 118,933.79 × 52,196.67
  4. Step 4: Simplify right side
    86,181.84x = 6,207,947,527.50
  5. Step 5: Solve for x
    x = 6,207,947,527.50/86,181.84
  6. Step 6: Final answer
    x = 72,033.13

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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.