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Finding the Fourth Proportional to 86,213.50, 118,974.63 and 48,488.56

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Solution

The fourth proportional to 86,213.50, 118,974.63 and 48,488.56 is: 66,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,213.50 : 118,974.63 = 48,488.56 : x
  2. Step 2: Convert to fraction form
    86,213.50/118,974.63 = 48,488.56/x
  3. Step 3: Cross multiply
    86,213.50x = 118,974.63 × 48,488.56
  4. Step 4: Simplify right side
    86,213.50x = 5,768,908,485.23
  5. Step 5: Solve for x
    x = 5,768,908,485.23/86,213.50
  6. Step 6: Final answer
    x = 66,914.21

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1.5x scale

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.