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Finding the Fourth Proportional to 170,060.80, 255,091.20 and 43,700.80

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Solution

The fourth proportional to 170,060.80, 255,091.20 and 43,700.80 is: 65,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,060.80 : 255,091.20 = 43,700.80 : x
  2. Step 2: Convert to fraction form
    170,060.80/255,091.20 = 43,700.80/x
  3. Step 3: Cross multiply
    170,060.80x = 255,091.20 × 43,700.80
  4. Step 4: Simplify right side
    170,060.80x = 11,147,689,512.96
  5. Step 5: Solve for x
    x = 11,147,689,512.96/170,060.80
  6. Step 6: Final answer
    x = 65,551.20

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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.