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Finding the Fourth Proportional to 72,652.86, 108,776.28 and 39,253.25

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Solution

The fourth proportional to 72,652.86, 108,776.28 and 39,253.25 is: 58,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,652.86 : 108,776.28 = 39,253.25 : x
  2. Step 2: Convert to fraction form
    72,652.86/108,776.28 = 39,253.25/x
  3. Step 3: Cross multiply
    72,652.86x = 108,776.28 × 39,253.25
  4. Step 4: Simplify right side
    72,652.86x = 4,269,822,932.05
  5. Step 5: Solve for x
    x = 4,269,822,932.05/72,652.86
  6. Step 6: Final answer
    x = 58,770.20

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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.