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Finding the Fourth Proportional to 79,167.97, 118,707 and 69,829.48

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Solution

The fourth proportional to 79,167.97, 118,707 and 69,829.48 is: 104,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,167.97 : 118,707 = 69,829.48 : x
  2. Step 2: Convert to fraction form
    79,167.97/118,707 = 69,829.48/x
  3. Step 3: Cross multiply
    79,167.97x = 118,707 × 69,829.48
  4. Step 4: Simplify right side
    79,167.97x = 8,289,248,082.36
  5. Step 5: Solve for x
    x = 8,289,248,082.36/79,167.97
  6. Step 6: Final answer
    x = 104,704.57

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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.