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Finding the Fourth Proportional to 79,222.24, 118,859.84 and 25,916.66

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Solution

The fourth proportional to 79,222.24, 118,859.84 and 25,916.66 is: 38,883.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,222.24 : 118,859.84 = 25,916.66 : x
  2. Step 2: Convert to fraction form
    79,222.24/118,859.84 = 25,916.66/x
  3. Step 3: Cross multiply
    79,222.24x = 118,859.84 × 25,916.66
  4. Step 4: Simplify right side
    79,222.24x = 3,080,450,060.93
  5. Step 5: Solve for x
    x = 3,080,450,060.93/79,222.24
  6. Step 6: Final answer
    x = 38,883.65

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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.