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Finding the Fourth Proportional to 73,903.07, 101,986.64 and 40,369.07

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Solution

The fourth proportional to 73,903.07, 101,986.64 and 40,369.07 is: 55,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,903.07 : 101,986.64 = 40,369.07 : x
  2. Step 2: Convert to fraction form
    73,903.07/101,986.64 = 40,369.07/x
  3. Step 3: Cross multiply
    73,903.07x = 101,986.64 × 40,369.07
  4. Step 4: Simplify right side
    73,903.07x = 4,117,105,809.22
  5. Step 5: Solve for x
    x = 4,117,105,809.22/73,903.07
  6. Step 6: Final answer
    x = 55,709.54

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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.