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Finding the Fourth Proportional to 174,418.80, 261,628.20 and 165,817.20

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Solution

The fourth proportional to 174,418.80, 261,628.20 and 165,817.20 is: 248,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,418.80 : 261,628.20 = 165,817.20 : x
  2. Step 2: Convert to fraction form
    174,418.80/261,628.20 = 165,817.20/x
  3. Step 3: Cross multiply
    174,418.80x = 261,628.20 × 165,817.20
  4. Step 4: Simplify right side
    174,418.80x = 43,382,455,565.04
  5. Step 5: Solve for x
    x = 43,382,455,565.04/174,418.80
  6. Step 6: Final answer
    x = 248,725.80

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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.