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Finding the Fourth Proportional to 100,369.59, 150,554.64 and 33,856.38

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Solution

The fourth proportional to 100,369.59, 150,554.64 and 33,856.38 is: 50,784.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,369.59 : 150,554.64 = 33,856.38 : x
  2. Step 2: Convert to fraction form
    100,369.59/150,554.64 = 33,856.38/x
  3. Step 3: Cross multiply
    100,369.59x = 150,554.64 × 33,856.38
  4. Step 4: Simplify right side
    100,369.59x = 5,097,235,102.60
  5. Step 5: Solve for x
    x = 5,097,235,102.60/100,369.59
  6. Step 6: Final answer
    x = 50,784.66

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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.