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Finding the Fourth Proportional to 74,615.94, 111,885.90 and 36,667.74

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Solution

The fourth proportional to 74,615.94, 111,885.90 and 36,667.74 is: 54,982.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,615.94 : 111,885.90 = 36,667.74 : x
  2. Step 2: Convert to fraction form
    74,615.94/111,885.90 = 36,667.74/x
  3. Step 3: Cross multiply
    74,615.94x = 111,885.90 × 36,667.74
  4. Step 4: Simplify right side
    74,615.94x = 4,102,603,090.87
  5. Step 5: Solve for x
    x = 4,102,603,090.87/74,615.94
  6. Step 6: Final answer
    x = 54,982.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.