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Finding the Fourth Proportional to 90,507.44, 135,814.04 and 37,912.48

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Solution

The fourth proportional to 90,507.44, 135,814.04 and 37,912.48 is: 56,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,507.44 : 135,814.04 = 37,912.48 : x
  2. Step 2: Convert to fraction form
    90,507.44/135,814.04 = 37,912.48/x
  3. Step 3: Cross multiply
    90,507.44x = 135,814.04 × 37,912.48
  4. Step 4: Simplify right side
    90,507.44x = 5,149,047,075.22
  5. Step 5: Solve for x
    x = 5,149,047,075.22/90,507.44
  6. Step 6: Final answer
    x = 56,890.87

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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.