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Finding the Fourth Proportional to 170,173.78, 255,241.32 and 45,524.50

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Solution

The fourth proportional to 170,173.78, 255,241.32 and 45,524.50 is: 68,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,173.78 : 255,241.32 = 45,524.50 : x
  2. Step 2: Convert to fraction form
    170,173.78/255,241.32 = 45,524.50/x
  3. Step 3: Cross multiply
    170,173.78x = 255,241.32 × 45,524.50
  4. Step 4: Simplify right side
    170,173.78x = 11,619,733,472.34
  5. Step 5: Solve for x
    x = 11,619,733,472.34/170,173.78
  6. Step 6: Final answer
    x = 68,281.57

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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.