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Finding the Fourth Proportional to 161,181.92, 222,418 and 93,203.30

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Solution

The fourth proportional to 161,181.92, 222,418 and 93,203.30 is: 128,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,181.92 : 222,418 = 93,203.30 : x
  2. Step 2: Convert to fraction form
    161,181.92/222,418 = 93,203.30/x
  3. Step 3: Cross multiply
    161,181.92x = 222,418 × 93,203.30
  4. Step 4: Simplify right side
    161,181.92x = 20,730,091,579.40
  5. Step 5: Solve for x
    x = 20,730,091,579.40/161,181.92
  6. Step 6: Final answer
    x = 128,613.01

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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.