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Finding the Fourth Proportional to 72,612.72, 100,216.68 and 44,334.96

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Solution

The fourth proportional to 72,612.72, 100,216.68 and 44,334.96 is: 61,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,612.72 : 100,216.68 = 44,334.96 : x
  2. Step 2: Convert to fraction form
    72,612.72/100,216.68 = 44,334.96/x
  3. Step 3: Cross multiply
    72,612.72x = 100,216.68 × 44,334.96
  4. Step 4: Simplify right side
    72,612.72x = 4,443,102,499.13
  5. Step 5: Solve for x
    x = 4,443,102,499.13/72,612.72
  6. Step 6: Final answer
    x = 61,189.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.