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Finding the Fourth Proportional to 175,725.80, 263,588.70 and 80,955.80

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Solution

The fourth proportional to 175,725.80, 263,588.70 and 80,955.80 is: 121,433.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,725.80 : 263,588.70 = 80,955.80 : x
  2. Step 2: Convert to fraction form
    175,725.80/263,588.70 = 80,955.80/x
  3. Step 3: Cross multiply
    175,725.80x = 263,588.70 × 80,955.80
  4. Step 4: Simplify right side
    175,725.80x = 21,339,034,079.46
  5. Step 5: Solve for x
    x = 21,339,034,079.46/175,725.80
  6. Step 6: Final answer
    x = 121,433.70

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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.