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Finding the Fourth Proportional to 170,074.80, 255,112.20 and 43,714.80

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Solution

The fourth proportional to 170,074.80, 255,112.20 and 43,714.80 is: 65,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,074.80 : 255,112.20 = 43,714.80 : x
  2. Step 2: Convert to fraction form
    170,074.80/255,112.20 = 43,714.80/x
  3. Step 3: Cross multiply
    170,074.80x = 255,112.20 × 43,714.80
  4. Step 4: Simplify right side
    170,074.80x = 11,152,178,800.56
  5. Step 5: Solve for x
    x = 11,152,178,800.56/170,074.80
  6. Step 6: Final answer
    x = 65,572.20

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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.