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Finding the Fourth Proportional to 170,866.44, 256,320.18 and 71,094.15

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Solution

The fourth proportional to 170,866.44, 256,320.18 and 71,094.15 is: 106,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,866.44 : 256,320.18 = 71,094.15 : x
  2. Step 2: Convert to fraction form
    170,866.44/256,320.18 = 71,094.15/x
  3. Step 3: Cross multiply
    170,866.44x = 256,320.18 × 71,094.15
  4. Step 4: Simplify right side
    170,866.44x = 18,222,865,324.95
  5. Step 5: Solve for x
    x = 18,222,865,324.95/170,866.44
  6. Step 6: Final answer
    x = 106,649.76

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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.