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Finding the Fourth Proportional to 65,121.40, 97,609.20 and 37,054.90

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Solution

The fourth proportional to 65,121.40, 97,609.20 and 37,054.90 is: 55,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,121.40 : 97,609.20 = 37,054.90 : x
  2. Step 2: Convert to fraction form
    65,121.40/97,609.20 = 37,054.90/x
  3. Step 3: Cross multiply
    65,121.40x = 97,609.20 × 37,054.90
  4. Step 4: Simplify right side
    65,121.40x = 3,616,899,145.08
  5. Step 5: Solve for x
    x = 3,616,899,145.08/65,121.40
  6. Step 6: Final answer
    x = 55,540.87

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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.