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Finding the Fourth Proportional to 79,004.88, 118,382.76 and 29,016

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Solution

The fourth proportional to 79,004.88, 118,382.76 and 29,016 is: 43,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,004.88 : 118,382.76 = 29,016 : x
  2. Step 2: Convert to fraction form
    79,004.88/118,382.76 = 29,016/x
  3. Step 3: Cross multiply
    79,004.88x = 118,382.76 × 29,016
  4. Step 4: Simplify right side
    79,004.88x = 3,434,994,164.16
  5. Step 5: Solve for x
    x = 3,434,994,164.16/79,004.88
  6. Step 6: Final answer
    x = 43,478.25

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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.