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Finding the Fourth Proportional to 101,220.70, 151,940.40 and 56,933.95

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Solution

The fourth proportional to 101,220.70, 151,940.40 and 56,933.95 is: 85,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,220.70 : 151,940.40 = 56,933.95 : x
  2. Step 2: Convert to fraction form
    101,220.70/151,940.40 = 56,933.95/x
  3. Step 3: Cross multiply
    101,220.70x = 151,940.40 × 56,933.95
  4. Step 4: Simplify right side
    101,220.70x = 8,650,567,136.58
  5. Step 5: Solve for x
    x = 8,650,567,136.58/101,220.70
  6. Step 6: Final answer
    x = 85,462.43

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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.