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Finding the Fourth Proportional to 170,484.54, 255,913.74 and 70,714.68

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Solution

The fourth proportional to 170,484.54, 255,913.74 and 70,714.68 is: 106,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,484.54 : 255,913.74 = 70,714.68 : x
  2. Step 2: Convert to fraction form
    170,484.54/255,913.74 = 70,714.68/x
  3. Step 3: Cross multiply
    170,484.54x = 255,913.74 × 70,714.68
  4. Step 4: Simplify right side
    170,484.54x = 18,096,858,231.70
  5. Step 5: Solve for x
    x = 18,096,858,231.70/170,484.54
  6. Step 6: Final answer
    x = 106,149.56

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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.