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Finding the Fourth Proportional to 133,076.60, 199,614.90 and 83,472.20

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Solution

The fourth proportional to 133,076.60, 199,614.90 and 83,472.20 is: 125,208.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,076.60 : 199,614.90 = 83,472.20 : x
  2. Step 2: Convert to fraction form
    133,076.60/199,614.90 = 83,472.20/x
  3. Step 3: Cross multiply
    133,076.60x = 199,614.90 × 83,472.20
  4. Step 4: Simplify right side
    133,076.60x = 16,662,294,855.78
  5. Step 5: Solve for x
    x = 16,662,294,855.78/133,076.60
  6. Step 6: Final answer
    x = 125,208.30

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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.