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Finding the Fourth Proportional to 79,326.40, 118,860.96 and 41,884.48

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Solution

The fourth proportional to 79,326.40, 118,860.96 and 41,884.48 is: 62,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,326.40 : 118,860.96 = 41,884.48 : x
  2. Step 2: Convert to fraction form
    79,326.40/118,860.96 = 41,884.48/x
  3. Step 3: Cross multiply
    79,326.40x = 118,860.96 × 41,884.48
  4. Step 4: Simplify right side
    79,326.40x = 4,978,429,501.90
  5. Step 5: Solve for x
    x = 4,978,429,501.90/79,326.40
  6. Step 6: Final answer
    x = 62,758.80

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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.