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Finding the Fourth Proportional to 135,458.39, 186,924.34 and 75,025.44

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Solution

The fourth proportional to 135,458.39, 186,924.34 and 75,025.44 is: 103,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,458.39 : 186,924.34 = 75,025.44 : x
  2. Step 2: Convert to fraction form
    135,458.39/186,924.34 = 75,025.44/x
  3. Step 3: Cross multiply
    135,458.39x = 186,924.34 × 75,025.44
  4. Step 4: Simplify right side
    135,458.39x = 14,024,080,948.99
  5. Step 5: Solve for x
    x = 14,024,080,948.99/135,458.39
  6. Step 6: Final answer
    x = 103,530.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.