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Finding the Fourth Proportional to 170,246.10, 255,514.95 and 75,621.90

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Solution

The fourth proportional to 170,246.10, 255,514.95 and 75,621.90 is: 113,497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,246.10 : 255,514.95 = 75,621.90 : x
  2. Step 2: Convert to fraction form
    170,246.10/255,514.95 = 75,621.90/x
  3. Step 3: Cross multiply
    170,246.10x = 255,514.95 × 75,621.90
  4. Step 4: Simplify right side
    170,246.10x = 19,322,525,997.41
  5. Step 5: Solve for x
    x = 19,322,525,997.41/170,246.10
  6. Step 6: Final answer
    x = 113,497.61

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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.