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Finding the Fourth Proportional to 170,676.80, 256,015.20 and 117,532.70

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Solution

The fourth proportional to 170,676.80, 256,015.20 and 117,532.70 is: 176,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,676.80 : 256,015.20 = 117,532.70 : x
  2. Step 2: Convert to fraction form
    170,676.80/256,015.20 = 117,532.70/x
  3. Step 3: Cross multiply
    170,676.80x = 256,015.20 × 117,532.70
  4. Step 4: Simplify right side
    170,676.80x = 30,090,157,697.04
  5. Step 5: Solve for x
    x = 30,090,157,697.04/170,676.80
  6. Step 6: Final answer
    x = 176,299.05

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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.