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Finding the Fourth Proportional to 54,254.70, 81,367.47 and 36,831.78

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Solution

The fourth proportional to 54,254.70, 81,367.47 and 36,831.78 is: 55,237.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,254.70 : 81,367.47 = 36,831.78 : x
  2. Step 2: Convert to fraction form
    54,254.70/81,367.47 = 36,831.78/x
  3. Step 3: Cross multiply
    54,254.70x = 81,367.47 × 36,831.78
  4. Step 4: Simplify right side
    54,254.70x = 2,996,908,754.20
  5. Step 5: Solve for x
    x = 2,996,908,754.20/54,254.70
  6. Step 6: Final answer
    x = 55,237.77

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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.