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Finding the Fourth Proportional to 168,298.80, 252,207.60 and 123,574.64

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Solution

The fourth proportional to 168,298.80, 252,207.60 and 123,574.64 is: 185,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,298.80 : 252,207.60 = 123,574.64 : x
  2. Step 2: Convert to fraction form
    168,298.80/252,207.60 = 123,574.64/x
  3. Step 3: Cross multiply
    168,298.80x = 252,207.60 × 123,574.64
  4. Step 4: Simplify right side
    168,298.80x = 31,166,463,375.26
  5. Step 5: Solve for x
    x = 31,166,463,375.26/168,298.80
  6. Step 6: Final answer
    x = 185,185.30

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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.