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Finding the Fourth Proportional to 235,476.60, 353,213.28 and 77,717.76

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Solution

The fourth proportional to 235,476.60, 353,213.28 and 77,717.76 is: 116,576.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,476.60 : 353,213.28 = 77,717.76 : x
  2. Step 2: Convert to fraction form
    235,476.60/353,213.28 = 77,717.76/x
  3. Step 3: Cross multiply
    235,476.60x = 353,213.28 × 77,717.76
  4. Step 4: Simplify right side
    235,476.60x = 27,450,944,923.85
  5. Step 5: Solve for x
    x = 27,450,944,923.85/235,476.60
  6. Step 6: Final answer
    x = 116,576.11

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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.