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Finding the Fourth Proportional to 86,200.84, 118,958.61 and 47,963.44

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Solution

The fourth proportional to 86,200.84, 118,958.61 and 47,963.44 is: 66,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,200.84 : 118,958.61 = 47,963.44 : x
  2. Step 2: Convert to fraction form
    86,200.84/118,958.61 = 47,963.44/x
  3. Step 3: Cross multiply
    86,200.84x = 118,958.61 × 47,963.44
  4. Step 4: Simplify right side
    86,200.84x = 5,705,664,153.22
  5. Step 5: Solve for x
    x = 5,705,664,153.22/86,200.84
  6. Step 6: Final answer
    x = 66,190.35

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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.