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Finding the Fourth Proportional to 168,047.20, 251,849.40 and 123,464.80

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Solution

The fourth proportional to 168,047.20, 251,849.40 and 123,464.80 is: 185,034.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,047.20 : 251,849.40 = 123,464.80 : x
  2. Step 2: Convert to fraction form
    168,047.20/251,849.40 = 123,464.80/x
  3. Step 3: Cross multiply
    168,047.20x = 251,849.40 × 123,464.80
  4. Step 4: Simplify right side
    168,047.20x = 31,094,535,801.12
  5. Step 5: Solve for x
    x = 31,094,535,801.12/168,047.20
  6. Step 6: Final answer
    x = 185,034.54

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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.