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Finding the Fourth Proportional to 91,093.95, 136,608.12 and 38,507.52

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Solution

The fourth proportional to 91,093.95, 136,608.12 and 38,507.52 is: 57,747.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,093.95 : 136,608.12 = 38,507.52 : x
  2. Step 2: Convert to fraction form
    91,093.95/136,608.12 = 38,507.52/x
  3. Step 3: Cross multiply
    91,093.95x = 136,608.12 × 38,507.52
  4. Step 4: Simplify right side
    91,093.95x = 5,260,439,913.06
  5. Step 5: Solve for x
    x = 5,260,439,913.06/91,093.95
  6. Step 6: Final answer
    x = 57,747.41

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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.