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Finding the Fourth Proportional to 72,409.28, 99,924.91 and 44,114.96

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Solution

The fourth proportional to 72,409.28, 99,924.91 and 44,114.96 is: 60,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,409.28 : 99,924.91 = 44,114.96 : x
  2. Step 2: Convert to fraction form
    72,409.28/99,924.91 = 44,114.96/x
  3. Step 3: Cross multiply
    72,409.28x = 99,924.91 × 44,114.96
  4. Step 4: Simplify right side
    72,409.28x = 4,408,183,547.18
  5. Step 5: Solve for x
    x = 4,408,183,547.18/72,409.28
  6. Step 6: Final answer
    x = 60,878.71

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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.