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Finding the Fourth Proportional to 92,273.96, 138,361.72 and 47,790.36

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Solution

The fourth proportional to 92,273.96, 138,361.72 and 47,790.36 is: 71,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,273.96 : 138,361.72 = 47,790.36 : x
  2. Step 2: Convert to fraction form
    92,273.96/138,361.72 = 47,790.36/x
  3. Step 3: Cross multiply
    92,273.96x = 138,361.72 × 47,790.36
  4. Step 4: Simplify right side
    92,273.96x = 6,612,356,409.02
  5. Step 5: Solve for x
    x = 6,612,356,409.02/92,273.96
  6. Step 6: Final answer
    x = 71,660.05

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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.