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Finding the Fourth Proportional to 91,749.60, 137,494.80 and 56,584.80

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Solution

The fourth proportional to 91,749.60, 137,494.80 and 56,584.80 is: 84,797.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,749.60 : 137,494.80 = 56,584.80 : x
  2. Step 2: Convert to fraction form
    91,749.60/137,494.80 = 56,584.80/x
  3. Step 3: Cross multiply
    91,749.60x = 137,494.80 × 56,584.80
  4. Step 4: Simplify right side
    91,749.60x = 7,780,115,759.04
  5. Step 5: Solve for x
    x = 7,780,115,759.04/91,749.60
  6. Step 6: Final answer
    x = 84,797.27

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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.