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Finding the Fourth Proportional to 218,078.20, 327,117.30 and 93,662.20

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Solution

The fourth proportional to 218,078.20, 327,117.30 and 93,662.20 is: 140,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,078.20 : 327,117.30 = 93,662.20 : x
  2. Step 2: Convert to fraction form
    218,078.20/327,117.30 = 93,662.20/x
  3. Step 3: Cross multiply
    218,078.20x = 327,117.30 × 93,662.20
  4. Step 4: Simplify right side
    218,078.20x = 30,638,525,976.06
  5. Step 5: Solve for x
    x = 30,638,525,976.06/218,078.20
  6. Step 6: Final answer
    x = 140,493.30

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1.5x scale

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.