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Finding the Fourth Proportional to 170,672.76, 255,864.54 and 70,770.60

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Solution

The fourth proportional to 170,672.76, 255,864.54 and 70,770.60 is: 106,095.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,672.76 : 255,864.54 = 70,770.60 : x
  2. Step 2: Convert to fraction form
    170,672.76/255,864.54 = 70,770.60/x
  3. Step 3: Cross multiply
    170,672.76x = 255,864.54 × 70,770.60
  4. Step 4: Simplify right side
    170,672.76x = 18,107,687,014.52
  5. Step 5: Solve for x
    x = 18,107,687,014.52/170,672.76
  6. Step 6: Final answer
    x = 106,095.94

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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.