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Finding the Fourth Proportional to 92,040.34, 138,060.87 and 27,999.11

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Solution

The fourth proportional to 92,040.34, 138,060.87 and 27,999.11 is: 41,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,040.34 : 138,060.87 = 27,999.11 : x
  2. Step 2: Convert to fraction form
    92,040.34/138,060.87 = 27,999.11/x
  3. Step 3: Cross multiply
    92,040.34x = 138,060.87 × 27,999.11
  4. Step 4: Simplify right side
    92,040.34x = 3,865,581,485.83
  5. Step 5: Solve for x
    x = 3,865,581,485.83/92,040.34
  6. Step 6: Final answer
    x = 41,998.77

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1.5x scale

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.