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Finding the Fourth Proportional to 235,581.42, 353,338.79 and 75,671.25

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Solution

The fourth proportional to 235,581.42, 353,338.79 and 75,671.25 is: 113,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,581.42 : 353,338.79 = 75,671.25 : x
  2. Step 2: Convert to fraction form
    235,581.42/353,338.79 = 75,671.25/x
  3. Step 3: Cross multiply
    235,581.42x = 353,338.79 × 75,671.25
  4. Step 4: Simplify right side
    235,581.42x = 26,737,587,534.43
  5. Step 5: Solve for x
    x = 26,737,587,534.43/235,581.42
  6. Step 6: Final answer
    x = 113,496.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.