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Finding the Fourth Proportional to 86,548.32, 129,877.16 and 33,956.64

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Solution

The fourth proportional to 86,548.32, 129,877.16 and 33,956.64 is: 50,956.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,548.32 : 129,877.16 = 33,956.64 : x
  2. Step 2: Convert to fraction form
    86,548.32/129,877.16 = 33,956.64/x
  3. Step 3: Cross multiply
    86,548.32x = 129,877.16 × 33,956.64
  4. Step 4: Simplify right side
    86,548.32x = 4,410,191,796.56
  5. Step 5: Solve for x
    x = 4,410,191,796.56/86,548.32
  6. Step 6: Final answer
    x = 50,956.41

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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.