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Finding the Fourth Proportional to 170,118.59, 255,198.76 and 57,817.31

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Solution

The fourth proportional to 170,118.59, 255,198.76 and 57,817.31 is: 86,733.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,118.59 : 255,198.76 = 57,817.31 : x
  2. Step 2: Convert to fraction form
    170,118.59/255,198.76 = 57,817.31/x
  3. Step 3: Cross multiply
    170,118.59x = 255,198.76 × 57,817.31
  4. Step 4: Simplify right side
    170,118.59x = 14,754,904,398.00
  5. Step 5: Solve for x
    x = 14,754,904,398.00/170,118.59
  6. Step 6: Final answer
    x = 86,733.05

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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.