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Finding the Fourth Proportional to 92,709.96, 127,892.64 and 58,661.04

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Solution

The fourth proportional to 92,709.96, 127,892.64 and 58,661.04 is: 80,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,709.96 : 127,892.64 = 58,661.04 : x
  2. Step 2: Convert to fraction form
    92,709.96/127,892.64 = 58,661.04/x
  3. Step 3: Cross multiply
    92,709.96x = 127,892.64 × 58,661.04
  4. Step 4: Simplify right side
    92,709.96x = 7,502,315,270.75
  5. Step 5: Solve for x
    x = 7,502,315,270.75/92,709.96
  6. Step 6: Final answer
    x = 80,922.43

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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.