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Finding the Fourth Proportional to 84,783.72, 127,168.20 and 32,193.60

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Solution

The fourth proportional to 84,783.72, 127,168.20 and 32,193.60 is: 48,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,783.72 : 127,168.20 = 32,193.60 : x
  2. Step 2: Convert to fraction form
    84,783.72/127,168.20 = 32,193.60/x
  3. Step 3: Cross multiply
    84,783.72x = 127,168.20 × 32,193.60
  4. Step 4: Simplify right side
    84,783.72x = 4,094,002,163.52
  5. Step 5: Solve for x
    x = 4,094,002,163.52/84,783.72
  6. Step 6: Final answer
    x = 48,287.60

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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.