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Finding the Fourth Proportional to 201,658.70, 302,533.56 and 66,722.46

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Solution

The fourth proportional to 201,658.70, 302,533.56 and 66,722.46 is: 100,098.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,658.70 : 302,533.56 = 66,722.46 : x
  2. Step 2: Convert to fraction form
    201,658.70/302,533.56 = 66,722.46/x
  3. Step 3: Cross multiply
    201,658.70x = 302,533.56 × 66,722.46
  4. Step 4: Simplify right side
    201,658.70x = 20,185,783,355.76
  5. Step 5: Solve for x
    x = 20,185,783,355.76/201,658.70
  6. Step 6: Final answer
    x = 100,098.75

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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.