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Finding the Fourth Proportional to 332,738.28, 499,107.42 and 83,420.28

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Solution

The fourth proportional to 332,738.28, 499,107.42 and 83,420.28 is: 125,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,738.28 : 499,107.42 = 83,420.28 : x
  2. Step 2: Convert to fraction form
    332,738.28/499,107.42 = 83,420.28/x
  3. Step 3: Cross multiply
    332,738.28x = 499,107.42 × 83,420.28
  4. Step 4: Simplify right side
    332,738.28x = 41,635,680,726.48
  5. Step 5: Solve for x
    x = 41,635,680,726.48/332,738.28
  6. Step 6: Final answer
    x = 125,130.42

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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.