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Finding the Fourth Proportional to 170,765.80, 256,175.70 and 58,456.60

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Solution

The fourth proportional to 170,765.80, 256,175.70 and 58,456.60 is: 87,694.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,765.80 : 256,175.70 = 58,456.60 : x
  2. Step 2: Convert to fraction form
    170,765.80/256,175.70 = 58,456.60/x
  3. Step 3: Cross multiply
    170,765.80x = 256,175.70 × 58,456.60
  4. Step 4: Simplify right side
    170,765.80x = 14,975,160,424.62
  5. Step 5: Solve for x
    x = 14,975,160,424.62/170,765.80
  6. Step 6: Final answer
    x = 87,694.14

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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.