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Finding the Fourth Proportional to 170,415.40, 255,623.10 and 160,738.60

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Solution

The fourth proportional to 170,415.40, 255,623.10 and 160,738.60 is: 241,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,415.40 : 255,623.10 = 160,738.60 : x
  2. Step 2: Convert to fraction form
    170,415.40/255,623.10 = 160,738.60/x
  3. Step 3: Cross multiply
    170,415.40x = 255,623.10 × 160,738.60
  4. Step 4: Simplify right side
    170,415.40x = 41,088,499,221.66
  5. Step 5: Solve for x
    x = 41,088,499,221.66/170,415.40
  6. Step 6: Final answer
    x = 241,107.90

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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.