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Finding the Fourth Proportional to 123,514.92, 170,453.72 and 75,794.60

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Solution

The fourth proportional to 123,514.92, 170,453.72 and 75,794.60 is: 104,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,514.92 : 170,453.72 = 75,794.60 : x
  2. Step 2: Convert to fraction form
    123,514.92/170,453.72 = 75,794.60/x
  3. Step 3: Cross multiply
    123,514.92x = 170,453.72 × 75,794.60
  4. Step 4: Simplify right side
    123,514.92x = 12,919,471,525.91
  5. Step 5: Solve for x
    x = 12,919,471,525.91/123,514.92
  6. Step 6: Final answer
    x = 104,598.47

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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.