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Finding the Fourth Proportional to 79,063.67, 118,603.79 and 25,759.79

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Solution

The fourth proportional to 79,063.67, 118,603.79 and 25,759.79 is: 38,642.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,063.67 : 118,603.79 = 25,759.79 : x
  2. Step 2: Convert to fraction form
    79,063.67/118,603.79 = 25,759.79/x
  3. Step 3: Cross multiply
    79,063.67x = 118,603.79 × 25,759.79
  4. Step 4: Simplify right side
    79,063.67x = 3,055,208,001.79
  5. Step 5: Solve for x
    x = 3,055,208,001.79/79,063.67
  6. Step 6: Final answer
    x = 38,642.38

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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.