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Finding the Fourth Proportional to 56,735.40, 85,103.10 and 50,611.80

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Solution

The fourth proportional to 56,735.40, 85,103.10 and 50,611.80 is: 75,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,735.40 : 85,103.10 = 50,611.80 : x
  2. Step 2: Convert to fraction form
    56,735.40/85,103.10 = 50,611.80/x
  3. Step 3: Cross multiply
    56,735.40x = 85,103.10 × 50,611.80
  4. Step 4: Simplify right side
    56,735.40x = 4,307,221,076.58
  5. Step 5: Solve for x
    x = 4,307,221,076.58/56,735.40
  6. Step 6: Final answer
    x = 75,917.70

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1.5x scale

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.