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Finding the Fourth Proportional to 277,037.51, 415,556.33 and 66,675.42

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Solution

The fourth proportional to 277,037.51, 415,556.33 and 66,675.42 is: 100,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,037.51 : 415,556.33 = 66,675.42 : x
  2. Step 2: Convert to fraction form
    277,037.51/415,556.33 = 66,675.42/x
  3. Step 3: Cross multiply
    277,037.51x = 415,556.33 × 66,675.42
  4. Step 4: Simplify right side
    277,037.51x = 27,707,392,503.03
  5. Step 5: Solve for x
    x = 27,707,392,503.03/277,037.51
  6. Step 6: Final answer
    x = 100,013.15

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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.