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Finding the Fourth Proportional to 235,252.16, 324,716.64 and 143,404.64

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Solution

The fourth proportional to 235,252.16, 324,716.64 and 143,404.64 is: 197,940.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,252.16 : 324,716.64 = 143,404.64 : x
  2. Step 2: Convert to fraction form
    235,252.16/324,716.64 = 143,404.64/x
  3. Step 3: Cross multiply
    235,252.16x = 324,716.64 × 143,404.64
  4. Step 4: Simplify right side
    235,252.16x = 46,565,872,861.21
  5. Step 5: Solve for x
    x = 46,565,872,861.21/235,252.16
  6. Step 6: Final answer
    x = 197,940.26

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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.