Home / 128,428.26-192,653.73-33,658.26

Finding the Fourth Proportional to 128,428.26, 192,653.73 and 33,658.26

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Solution

The fourth proportional to 128,428.26, 192,653.73 and 33,658.26 is: 50,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,428.26 : 192,653.73 = 33,658.26 : x
  2. Step 2: Convert to fraction form
    128,428.26/192,653.73 = 33,658.26/x
  3. Step 3: Cross multiply
    128,428.26x = 192,653.73 × 33,658.26
  4. Step 4: Simplify right side
    128,428.26x = 6,484,389,334.31
  5. Step 5: Solve for x
    x = 6,484,389,334.31/128,428.26
  6. Step 6: Final answer
    x = 50,490.36

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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.