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Finding the Fourth Proportional to 185,441.40, 278,145.90 and 60,782.40

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Solution

The fourth proportional to 185,441.40, 278,145.90 and 60,782.40 is: 91,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,441.40 : 278,145.90 = 60,782.40 : x
  2. Step 2: Convert to fraction form
    185,441.40/278,145.90 = 60,782.40/x
  3. Step 3: Cross multiply
    185,441.40x = 278,145.90 × 60,782.40
  4. Step 4: Simplify right side
    185,441.40x = 16,906,375,352.16
  5. Step 5: Solve for x
    x = 16,906,375,352.16/185,441.40
  6. Step 6: Final answer
    x = 91,168.29

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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.