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Finding the Fourth Proportional to 72,849.52, 109,245.54 and 35,398.52

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Solution

The fourth proportional to 72,849.52, 109,245.54 and 35,398.52 is: 53,083.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,849.52 : 109,245.54 = 35,398.52 : x
  2. Step 2: Convert to fraction form
    72,849.52/109,245.54 = 35,398.52/x
  3. Step 3: Cross multiply
    72,849.52x = 109,245.54 × 35,398.52
  4. Step 4: Simplify right side
    72,849.52x = 3,867,130,432.60
  5. Step 5: Solve for x
    x = 3,867,130,432.60/72,849.52
  6. Step 6: Final answer
    x = 53,083.81

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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.