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Finding the Fourth Proportional to 81,475.80, 122,213.70 and 59,022.60

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Solution

The fourth proportional to 81,475.80, 122,213.70 and 59,022.60 is: 88,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,475.80 : 122,213.70 = 59,022.60 : x
  2. Step 2: Convert to fraction form
    81,475.80/122,213.70 = 59,022.60/x
  3. Step 3: Cross multiply
    81,475.80x = 122,213.70 × 59,022.60
  4. Step 4: Simplify right side
    81,475.80x = 7,213,370,329.62
  5. Step 5: Solve for x
    x = 7,213,370,329.62/81,475.80
  6. Step 6: Final answer
    x = 88,533.90

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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.