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Finding the Fourth Proportional to 225,106.53, 337,660.33 and 91,986.78

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Solution

The fourth proportional to 225,106.53, 337,660.33 and 91,986.78 is: 137,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,106.53 : 337,660.33 = 91,986.78 : x
  2. Step 2: Convert to fraction form
    225,106.53/337,660.33 = 91,986.78/x
  3. Step 3: Cross multiply
    225,106.53x = 337,660.33 × 91,986.78
  4. Step 4: Simplify right side
    225,106.53x = 31,060,286,490.44
  5. Step 5: Solve for x
    x = 31,060,286,490.44/225,106.53
  6. Step 6: Final answer
    x = 137,980.39

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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.