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Finding the Fourth Proportional to 92,575.46, 138,945.22 and 47,628.54

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Solution

The fourth proportional to 92,575.46, 138,945.22 and 47,628.54 is: 71,485.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,575.46 : 138,945.22 = 47,628.54 : x
  2. Step 2: Convert to fraction form
    92,575.46/138,945.22 = 47,628.54/x
  3. Step 3: Cross multiply
    92,575.46x = 138,945.22 × 47,628.54
  4. Step 4: Simplify right side
    92,575.46x = 6,617,757,849.51
  5. Step 5: Solve for x
    x = 6,617,757,849.51/92,575.46
  6. Step 6: Final answer
    x = 71,485.01

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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.