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Finding the Fourth Proportional to 86,213.88, 118,936.08 and 62,302.68

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Solution

The fourth proportional to 86,213.88, 118,936.08 and 62,302.68 is: 85,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,213.88 : 118,936.08 = 62,302.68 : x
  2. Step 2: Convert to fraction form
    86,213.88/118,936.08 = 62,302.68/x
  3. Step 3: Cross multiply
    86,213.88x = 118,936.08 × 62,302.68
  4. Step 4: Simplify right side
    86,213.88x = 7,410,036,532.69
  5. Step 5: Solve for x
    x = 7,410,036,532.69/86,213.88
  6. Step 6: Final answer
    x = 85,949.46

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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.