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Finding the Fourth Proportional to 72,204.53, 108,266.80 and 29,539.93

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Solution

The fourth proportional to 72,204.53, 108,266.80 and 29,539.93 is: 44,293.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,204.53 : 108,266.80 = 29,539.93 : x
  2. Step 2: Convert to fraction form
    72,204.53/108,266.80 = 29,539.93/x
  3. Step 3: Cross multiply
    72,204.53x = 108,266.80 × 29,539.93
  4. Step 4: Simplify right side
    72,204.53x = 3,198,193,348.81
  5. Step 5: Solve for x
    x = 3,198,193,348.81/72,204.53
  6. Step 6: Final answer
    x = 44,293.53

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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.