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Finding the Fourth Proportional to 244,987.20, 367,480.80 and 87,231.60

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Solution

The fourth proportional to 244,987.20, 367,480.80 and 87,231.60 is: 130,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,987.20 : 367,480.80 = 87,231.60 : x
  2. Step 2: Convert to fraction form
    244,987.20/367,480.80 = 87,231.60/x
  3. Step 3: Cross multiply
    244,987.20x = 367,480.80 × 87,231.60
  4. Step 4: Simplify right side
    244,987.20x = 32,055,938,153.28
  5. Step 5: Solve for x
    x = 32,055,938,153.28/244,987.20
  6. Step 6: Final answer
    x = 130,847.40

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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.