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Finding the Fourth Proportional to 226,021.69, 311,924.51 and 125,419.69

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Solution

The fourth proportional to 226,021.69, 311,924.51 and 125,419.69 is: 173,087.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,021.69 : 311,924.51 = 125,419.69 : x
  2. Step 2: Convert to fraction form
    226,021.69/311,924.51 = 125,419.69/x
  3. Step 3: Cross multiply
    226,021.69x = 311,924.51 × 125,419.69
  4. Step 4: Simplify right side
    226,021.69x = 39,121,475,347.60
  5. Step 5: Solve for x
    x = 39,121,475,347.60/226,021.69
  6. Step 6: Final answer
    x = 173,087.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.