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Finding the Fourth Proportional to 89,855.40, 134,675.10 and 37,237.80

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Solution

The fourth proportional to 89,855.40, 134,675.10 and 37,237.80 is: 55,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,855.40 : 134,675.10 = 37,237.80 : x
  2. Step 2: Convert to fraction form
    89,855.40/134,675.10 = 37,237.80/x
  3. Step 3: Cross multiply
    89,855.40x = 134,675.10 × 37,237.80
  4. Step 4: Simplify right side
    89,855.40x = 5,015,004,438.78
  5. Step 5: Solve for x
    x = 5,015,004,438.78/89,855.40
  6. Step 6: Final answer
    x = 55,811.94

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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.