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Finding the Fourth Proportional to 134,589.72, 201,908.36 and 55,659.72

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Solution

The fourth proportional to 134,589.72, 201,908.36 and 55,659.72 is: 83,499.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,589.72 : 201,908.36 = 55,659.72 : x
  2. Step 2: Convert to fraction form
    134,589.72/201,908.36 = 55,659.72/x
  3. Step 3: Cross multiply
    134,589.72x = 201,908.36 × 55,659.72
  4. Step 4: Simplify right side
    134,589.72x = 11,238,162,783.26
  5. Step 5: Solve for x
    x = 11,238,162,783.26/134,589.72
  6. Step 6: Final answer
    x = 83,499.41

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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.