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Finding the Fourth Proportional to 234,993.16, 324,358.98 and 143,145.64

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Solution

The fourth proportional to 234,993.16, 324,358.98 and 143,145.64 is: 197,582.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,993.16 : 324,358.98 = 143,145.64 : x
  2. Step 2: Convert to fraction form
    234,993.16/324,358.98 = 143,145.64/x
  3. Step 3: Cross multiply
    234,993.16x = 324,358.98 × 143,145.64
  4. Step 4: Simplify right side
    234,993.16x = 46,430,573,781.85
  5. Step 5: Solve for x
    x = 46,430,573,781.85/234,993.16
  6. Step 6: Final answer
    x = 197,582.66

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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.