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Finding the Fourth Proportional to 170,740.70, 255,527.85 and 156,743.90

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Solution

The fourth proportional to 170,740.70, 255,527.85 and 156,743.90 is: 234,580.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,740.70 : 255,527.85 = 156,743.90 : x
  2. Step 2: Convert to fraction form
    170,740.70/255,527.85 = 156,743.90/x
  3. Step 3: Cross multiply
    170,740.70x = 255,527.85 × 156,743.90
  4. Step 4: Simplify right side
    170,740.70x = 40,052,431,767.62
  5. Step 5: Solve for x
    x = 40,052,431,767.62/170,740.70
  6. Step 6: Final answer
    x = 234,580.46

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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.