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Finding the Fourth Proportional to 168,243.71, 252,390.76 and 54,353.46

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Solution

The fourth proportional to 168,243.71, 252,390.76 and 54,353.46 is: 81,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,243.71 : 252,390.76 = 54,353.46 : x
  2. Step 2: Convert to fraction form
    168,243.71/252,390.76 = 54,353.46/x
  3. Step 3: Cross multiply
    168,243.71x = 252,390.76 × 54,353.46
  4. Step 4: Simplify right side
    168,243.71x = 13,718,309,816.08
  5. Step 5: Solve for x
    x = 13,718,309,816.08/168,243.71
  6. Step 6: Final answer
    x = 81,538.32

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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.