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Finding the Fourth Proportional to 92,809.37, 127,980.11 and 55,076.33

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Solution

The fourth proportional to 92,809.37, 127,980.11 and 55,076.33 is: 75,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,809.37 : 127,980.11 = 55,076.33 : x
  2. Step 2: Convert to fraction form
    92,809.37/127,980.11 = 55,076.33/x
  3. Step 3: Cross multiply
    92,809.37x = 127,980.11 × 55,076.33
  4. Step 4: Simplify right side
    92,809.37x = 7,048,674,269.59
  5. Step 5: Solve for x
    x = 7,048,674,269.59/92,809.37
  6. Step 6: Final answer
    x = 75,947.88

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1.5x scale

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.