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Finding the Fourth Proportional to 170,874.80, 256,312.20 and 161,033.30

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Solution

The fourth proportional to 170,874.80, 256,312.20 and 161,033.30 is: 241,549.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,874.80 : 256,312.20 = 161,033.30 : x
  2. Step 2: Convert to fraction form
    170,874.80/256,312.20 = 161,033.30/x
  3. Step 3: Cross multiply
    170,874.80x = 256,312.20 × 161,033.30
  4. Step 4: Simplify right side
    170,874.80x = 41,274,799,396.26
  5. Step 5: Solve for x
    x = 41,274,799,396.26/170,874.80
  6. Step 6: Final answer
    x = 241,549.95

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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.