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Finding the Fourth Proportional to 178,806.76, 268,275.56 and 168,243.55

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Solution

The fourth proportional to 178,806.76, 268,275.56 and 168,243.55 is: 252,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,806.76 : 268,275.56 = 168,243.55 : x
  2. Step 2: Convert to fraction form
    178,806.76/268,275.56 = 168,243.55/x
  3. Step 3: Cross multiply
    178,806.76x = 268,275.56 × 168,243.55
  4. Step 4: Simplify right side
    178,806.76x = 45,135,632,592.64
  5. Step 5: Solve for x
    x = 45,135,632,592.64/178,806.76
  6. Step 6: Final answer
    x = 252,426.88

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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.