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Finding the Fourth Proportional to 193,079.20, 289,618.80 and 174,416.80

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Solution

The fourth proportional to 193,079.20, 289,618.80 and 174,416.80 is: 261,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,079.20 : 289,618.80 = 174,416.80 : x
  2. Step 2: Convert to fraction form
    193,079.20/289,618.80 = 174,416.80/x
  3. Step 3: Cross multiply
    193,079.20x = 289,618.80 × 174,416.80
  4. Step 4: Simplify right side
    193,079.20x = 50,514,384,315.84
  5. Step 5: Solve for x
    x = 50,514,384,315.84/193,079.20
  6. Step 6: Final answer
    x = 261,625.20

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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.