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Finding the Fourth Proportional to 101,315.81, 152,017.46 and 54,559.37

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Solution

The fourth proportional to 101,315.81, 152,017.46 and 54,559.37 is: 81,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,315.81 : 152,017.46 = 54,559.37 : x
  2. Step 2: Convert to fraction form
    101,315.81/152,017.46 = 54,559.37/x
  3. Step 3: Cross multiply
    101,315.81x = 152,017.46 × 54,559.37
  4. Step 4: Simplify right side
    101,315.81x = 8,293,976,846.60
  5. Step 5: Solve for x
    x = 8,293,976,846.60/101,315.81
  6. Step 6: Final answer
    x = 81,862.61

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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.