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Finding the Fourth Proportional to 86,600.46, 129,914.28 and 36,680.84

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Solution

The fourth proportional to 86,600.46, 129,914.28 and 36,680.84 is: 55,027.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,600.46 : 129,914.28 = 36,680.84 : x
  2. Step 2: Convert to fraction form
    86,600.46/129,914.28 = 36,680.84/x
  3. Step 3: Cross multiply
    86,600.46x = 129,914.28 × 36,680.84
  4. Step 4: Simplify right side
    86,600.46x = 4,765,364,268.82
  5. Step 5: Solve for x
    x = 4,765,364,268.82/86,600.46
  6. Step 6: Final answer
    x = 55,027.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.