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Finding the Fourth Proportional to 325,613.90, 488,466.71 and 100,992.59

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Solution

The fourth proportional to 325,613.90, 488,466.71 and 100,992.59 is: 151,503.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,613.90 : 488,466.71 = 100,992.59 : x
  2. Step 2: Convert to fraction form
    325,613.90/488,466.71 = 100,992.59/x
  3. Step 3: Cross multiply
    325,613.90x = 488,466.71 × 100,992.59
  4. Step 4: Simplify right side
    325,613.90x = 49,331,519,266.60
  5. Step 5: Solve for x
    x = 49,331,519,266.60/325,613.90
  6. Step 6: Final answer
    x = 151,503.11

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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.