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Finding the Fourth Proportional to 72,400.39, 99,912.41 and 44,106.08

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Solution

The fourth proportional to 72,400.39, 99,912.41 and 44,106.08 is: 60,866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,400.39 : 99,912.41 = 44,106.08 : x
  2. Step 2: Convert to fraction form
    72,400.39/99,912.41 = 44,106.08/x
  3. Step 3: Cross multiply
    72,400.39x = 99,912.41 × 44,106.08
  4. Step 4: Simplify right side
    72,400.39x = 4,406,744,527.92
  5. Step 5: Solve for x
    x = 4,406,744,527.92/72,400.39
  6. Step 6: Final answer
    x = 60,866.31

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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.