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Finding the Fourth Proportional to 235,935.63, 353,959.34 and 102,839.67

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Solution

The fourth proportional to 235,935.63, 353,959.34 and 102,839.67 is: 154,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,935.63 : 353,959.34 = 102,839.67 : x
  2. Step 2: Convert to fraction form
    235,935.63/353,959.34 = 102,839.67/x
  3. Step 3: Cross multiply
    235,935.63x = 353,959.34 × 102,839.67
  4. Step 4: Simplify right side
    235,935.63x = 36,401,061,204.82
  5. Step 5: Solve for x
    x = 36,401,061,204.82/235,935.63
  6. Step 6: Final answer
    x = 154,283.87

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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.