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Finding the Fourth Proportional to 161,636.55, 222,997.10 and 97,951.11

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Solution

The fourth proportional to 161,636.55, 222,997.10 and 97,951.11 is: 135,135.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,636.55 : 222,997.10 = 97,951.11 : x
  2. Step 2: Convert to fraction form
    161,636.55/222,997.10 = 97,951.11/x
  3. Step 3: Cross multiply
    161,636.55x = 222,997.10 × 97,951.11
  4. Step 4: Simplify right side
    161,636.55x = 21,842,812,982.03
  5. Step 5: Solve for x
    x = 21,842,812,982.03/161,636.55
  6. Step 6: Final answer
    x = 135,135.36

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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.