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Finding the Fourth Proportional to 86,497.44, 129,797.40 and 36,574.80

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Solution

The fourth proportional to 86,497.44, 129,797.40 and 36,574.80 is: 54,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,497.44 : 129,797.40 = 36,574.80 : x
  2. Step 2: Convert to fraction form
    86,497.44/129,797.40 = 36,574.80/x
  3. Step 3: Cross multiply
    86,497.44x = 129,797.40 × 36,574.80
  4. Step 4: Simplify right side
    86,497.44x = 4,747,313,945.52
  5. Step 5: Solve for x
    x = 4,747,313,945.52/86,497.44
  6. Step 6: Final answer
    x = 54,883.87

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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.