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Finding the Fourth Proportional to 92,045.36, 127,056.50 and 80,834.25

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Solution

The fourth proportional to 92,045.36, 127,056.50 and 80,834.25 is: 111,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,045.36 : 127,056.50 = 80,834.25 : x
  2. Step 2: Convert to fraction form
    92,045.36/127,056.50 = 80,834.25/x
  3. Step 3: Cross multiply
    92,045.36x = 127,056.50 × 80,834.25
  4. Step 4: Simplify right side
    92,045.36x = 10,270,517,260.54
  5. Step 5: Solve for x
    x = 10,270,517,260.54/92,045.36
  6. Step 6: Final answer
    x = 111,581.04

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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.