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Finding the Fourth Proportional to 235,433.67, 353,063.03 and 77,619.75

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Solution

The fourth proportional to 235,433.67, 353,063.03 and 77,619.75 is: 116,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,433.67 : 353,063.03 = 77,619.75 : x
  2. Step 2: Convert to fraction form
    235,433.67/353,063.03 = 77,619.75/x
  3. Step 3: Cross multiply
    235,433.67x = 353,063.03 × 77,619.75
  4. Step 4: Simplify right side
    235,433.67x = 27,404,663,734.74
  5. Step 5: Solve for x
    x = 27,404,663,734.74/235,433.67
  6. Step 6: Final answer
    x = 116,400.78

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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.