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Finding the Fourth Proportional to 218,039.60, 327,059.40 and 170,800.40

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Solution

The fourth proportional to 218,039.60, 327,059.40 and 170,800.40 is: 256,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,039.60 : 327,059.40 = 170,800.40 : x
  2. Step 2: Convert to fraction form
    218,039.60/327,059.40 = 170,800.40/x
  3. Step 3: Cross multiply
    218,039.60x = 327,059.40 × 170,800.40
  4. Step 4: Simplify right side
    218,039.60x = 55,861,876,343.76
  5. Step 5: Solve for x
    x = 55,861,876,343.76/218,039.60
  6. Step 6: Final answer
    x = 256,200.60

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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.