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Finding the Fourth Proportional to 72,497.25, 100,046.21 and 44,208.81

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Solution

The fourth proportional to 72,497.25, 100,046.21 and 44,208.81 is: 61,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,497.25 : 100,046.21 = 44,208.81 : x
  2. Step 2: Convert to fraction form
    72,497.25/100,046.21 = 44,208.81/x
  3. Step 3: Cross multiply
    72,497.25x = 100,046.21 × 44,208.81
  4. Step 4: Simplify right side
    72,497.25x = 4,422,923,668.07
  5. Step 5: Solve for x
    x = 4,422,923,668.07/72,497.25
  6. Step 6: Final answer
    x = 61,008.16

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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.