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Finding the Fourth Proportional to 193,216.40, 289,824.60 and 185,440.40

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Solution

The fourth proportional to 193,216.40, 289,824.60 and 185,440.40 is: 278,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,216.40 : 289,824.60 = 185,440.40 : x
  2. Step 2: Convert to fraction form
    193,216.40/289,824.60 = 185,440.40/x
  3. Step 3: Cross multiply
    193,216.40x = 289,824.60 × 185,440.40
  4. Step 4: Simplify right side
    193,216.40x = 53,745,189,753.84
  5. Step 5: Solve for x
    x = 53,745,189,753.84/193,216.40
  6. Step 6: Final answer
    x = 278,160.60

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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.