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Finding the Fourth Proportional to 79,613.04, 119,321 and 69,771.52

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Solution

The fourth proportional to 79,613.04, 119,321 and 69,771.52 is: 104,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,613.04 : 119,321 = 69,771.52 : x
  2. Step 2: Convert to fraction form
    79,613.04/119,321 = 69,771.52/x
  3. Step 3: Cross multiply
    79,613.04x = 119,321 × 69,771.52
  4. Step 4: Simplify right side
    79,613.04x = 8,325,207,537.92
  5. Step 5: Solve for x
    x = 8,325,207,537.92/79,613.04
  6. Step 6: Final answer
    x = 104,570.90

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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.