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Finding the Fourth Proportional to 193,275.20, 289,912.80 and 186,276.80

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Solution

The fourth proportional to 193,275.20, 289,912.80 and 186,276.80 is: 279,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,275.20 : 289,912.80 = 186,276.80 : x
  2. Step 2: Convert to fraction form
    193,275.20/289,912.80 = 186,276.80/x
  3. Step 3: Cross multiply
    193,275.20x = 289,912.80 × 186,276.80
  4. Step 4: Simplify right side
    193,275.20x = 54,004,028,663.04
  5. Step 5: Solve for x
    x = 54,004,028,663.04/193,275.20
  6. Step 6: Final answer
    x = 279,415.20

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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.