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Finding the Fourth Proportional to 161,572.56, 222,982.20 and 93,607.80

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Solution

The fourth proportional to 161,572.56, 222,982.20 and 93,607.80 is: 129,185.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,572.56 : 222,982.20 = 93,607.80 : x
  2. Step 2: Convert to fraction form
    161,572.56/222,982.20 = 93,607.80/x
  3. Step 3: Cross multiply
    161,572.56x = 222,982.20 × 93,607.80
  4. Step 4: Simplify right side
    161,572.56x = 20,872,873,181.16
  5. Step 5: Solve for x
    x = 20,872,873,181.16/161,572.56
  6. Step 6: Final answer
    x = 129,185.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.