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Finding the Fourth Proportional to 92,771.76, 127,982.52 and 55,032.24

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Solution

The fourth proportional to 92,771.76, 127,982.52 and 55,032.24 is: 75,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,771.76 : 127,982.52 = 55,032.24 : x
  2. Step 2: Convert to fraction form
    92,771.76/127,982.52 = 55,032.24/x
  3. Step 3: Cross multiply
    92,771.76x = 127,982.52 × 55,032.24
  4. Step 4: Simplify right side
    92,771.76x = 7,043,164,756.44
  5. Step 5: Solve for x
    x = 7,043,164,756.44/92,771.76
  6. Step 6: Final answer
    x = 75,919.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.