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Finding the Fourth Proportional to 72,404.55, 108,651.51 and 34,968.33

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Solution

The fourth proportional to 72,404.55, 108,651.51 and 34,968.33 is: 52,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,404.55 : 108,651.51 = 34,968.33 : x
  2. Step 2: Convert to fraction form
    72,404.55/108,651.51 = 34,968.33/x
  3. Step 3: Cross multiply
    72,404.55x = 108,651.51 × 34,968.33
  4. Step 4: Simplify right side
    72,404.55x = 3,799,361,856.68
  5. Step 5: Solve for x
    x = 3,799,361,856.68/72,404.55
  6. Step 6: Final answer
    x = 52,474.08

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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.