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Finding the Fourth Proportional to 91,268.96, 136,912.08 and 35,852

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Solution

The fourth proportional to 91,268.96, 136,912.08 and 35,852 is: 53,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,268.96 : 136,912.08 = 35,852 : x
  2. Step 2: Convert to fraction form
    91,268.96/136,912.08 = 35,852/x
  3. Step 3: Cross multiply
    91,268.96x = 136,912.08 × 35,852
  4. Step 4: Simplify right side
    91,268.96x = 4,908,571,892.16
  5. Step 5: Solve for x
    x = 4,908,571,892.16/91,268.96
  6. Step 6: Final answer
    x = 53,781.39

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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.