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Finding the Fourth Proportional to 79,227.42, 118,860.93 and 55,899.42

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Solution

The fourth proportional to 79,227.42, 118,860.93 and 55,899.42 is: 83,863.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,227.42 : 118,860.93 = 55,899.42 : x
  2. Step 2: Convert to fraction form
    79,227.42/118,860.93 = 55,899.42/x
  3. Step 3: Cross multiply
    79,227.42x = 118,860.93 × 55,899.42
  4. Step 4: Simplify right side
    79,227.42x = 6,644,257,047.66
  5. Step 5: Solve for x
    x = 6,644,257,047.66/79,227.42
  6. Step 6: Final answer
    x = 83,863.10

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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.