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Finding the Fourth Proportional to 243,124.20, 335,284.92 and 161,308.26

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Solution

The fourth proportional to 243,124.20, 335,284.92 and 161,308.26 is: 222,455.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,124.20 : 335,284.92 = 161,308.26 : x
  2. Step 2: Convert to fraction form
    243,124.20/335,284.92 = 161,308.26/x
  3. Step 3: Cross multiply
    243,124.20x = 335,284.92 × 161,308.26
  4. Step 4: Simplify right side
    243,124.20x = 54,084,227,049.44
  5. Step 5: Solve for x
    x = 54,084,227,049.44/243,124.20
  6. Step 6: Final answer
    x = 222,455.14

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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.