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Finding the Fourth Proportional to 91,716.80, 137,575.20 and 32,558.45

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Solution

The fourth proportional to 91,716.80, 137,575.20 and 32,558.45 is: 48,837.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,716.80 : 137,575.20 = 32,558.45 : x
  2. Step 2: Convert to fraction form
    91,716.80/137,575.20 = 32,558.45/x
  3. Step 3: Cross multiply
    91,716.80x = 137,575.20 × 32,558.45
  4. Step 4: Simplify right side
    91,716.80x = 4,479,235,270.44
  5. Step 5: Solve for x
    x = 4,479,235,270.44/91,716.80
  6. Step 6: Final answer
    x = 48,837.68

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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.