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Finding the Fourth Proportional to 235,767.11, 325,308.15 and 140,255.15

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Solution

The fourth proportional to 235,767.11, 325,308.15 and 140,255.15 is: 193,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,767.11 : 325,308.15 = 140,255.15 : x
  2. Step 2: Convert to fraction form
    235,767.11/325,308.15 = 140,255.15/x
  3. Step 3: Cross multiply
    235,767.11x = 325,308.15 × 140,255.15
  4. Step 4: Simplify right side
    235,767.11x = 45,626,141,747.93
  5. Step 5: Solve for x
    x = 45,626,141,747.93/235,767.11
  6. Step 6: Final answer
    x = 193,522.09

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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.