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Finding the Fourth Proportional to 74,040.40, 110,947.20 and 55,232.20

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Solution

The fourth proportional to 74,040.40, 110,947.20 and 55,232.20 is: 82,763.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,040.40 : 110,947.20 = 55,232.20 : x
  2. Step 2: Convert to fraction form
    74,040.40/110,947.20 = 55,232.20/x
  3. Step 3: Cross multiply
    74,040.40x = 110,947.20 × 55,232.20
  4. Step 4: Simplify right side
    74,040.40x = 6,127,857,939.84
  5. Step 5: Solve for x
    x = 6,127,857,939.84/74,040.40
  6. Step 6: Final answer
    x = 82,763.71

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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.