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Finding the Fourth Proportional to 79,371.96, 118,284.95 and 76,969.08

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Solution

The fourth proportional to 79,371.96, 118,284.95 and 76,969.08 is: 114,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,371.96 : 118,284.95 = 76,969.08 : x
  2. Step 2: Convert to fraction form
    79,371.96/118,284.95 = 76,969.08/x
  3. Step 3: Cross multiply
    79,371.96x = 118,284.95 × 76,969.08
  4. Step 4: Simplify right side
    79,371.96x = 9,104,283,394.50
  5. Step 5: Solve for x
    x = 9,104,283,394.50/79,371.96
  6. Step 6: Final answer
    x = 114,704.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.