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Finding the Fourth Proportional to 170,611.72, 255,955.02 and 52,291.96

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Solution

The fourth proportional to 170,611.72, 255,955.02 and 52,291.96 is: 78,449.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,611.72 : 255,955.02 = 52,291.96 : x
  2. Step 2: Convert to fraction form
    170,611.72/255,955.02 = 52,291.96/x
  3. Step 3: Cross multiply
    170,611.72x = 255,955.02 × 52,291.96
  4. Step 4: Simplify right side
    170,611.72x = 13,384,389,667.64
  5. Step 5: Solve for x
    x = 13,384,389,667.64/170,611.72
  6. Step 6: Final answer
    x = 78,449.42

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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.