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Finding the Fourth Proportional to 170,466.46, 255,773.43 and 91,488.42

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Solution

The fourth proportional to 170,466.46, 255,773.43 and 91,488.42 is: 137,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,466.46 : 255,773.43 = 91,488.42 : x
  2. Step 2: Convert to fraction form
    170,466.46/255,773.43 = 91,488.42/x
  3. Step 3: Cross multiply
    170,466.46x = 255,773.43 × 91,488.42
  4. Step 4: Simplify right side
    170,466.46x = 23,400,306,988.68
  5. Step 5: Solve for x
    x = 23,400,306,988.68/170,466.46
  6. Step 6: Final answer
    x = 137,272.21

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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.