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Finding the Fourth Proportional to 234,992.16, 324,357.60 and 143,144.64

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Solution

The fourth proportional to 234,992.16, 324,357.60 and 143,144.64 is: 197,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,992.16 : 324,357.60 = 143,144.64 : x
  2. Step 2: Convert to fraction form
    234,992.16/324,357.60 = 143,144.64/x
  3. Step 3: Cross multiply
    234,992.16x = 324,357.60 × 143,144.64
  4. Step 4: Simplify right side
    234,992.16x = 46,430,051,883.26
  5. Step 5: Solve for x
    x = 46,430,051,883.26/234,992.16
  6. Step 6: Final answer
    x = 197,581.28

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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.