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Finding the Fourth Proportional to 114,620.30, 171,930.45 and 104,770.70

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Solution

The fourth proportional to 114,620.30, 171,930.45 and 104,770.70 is: 157,156.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,620.30 : 171,930.45 = 104,770.70 : x
  2. Step 2: Convert to fraction form
    114,620.30/171,930.45 = 104,770.70/x
  3. Step 3: Cross multiply
    114,620.30x = 171,930.45 × 104,770.70
  4. Step 4: Simplify right side
    114,620.30x = 18,013,273,597.82
  5. Step 5: Solve for x
    x = 18,013,273,597.82/114,620.30
  6. Step 6: Final answer
    x = 157,156.05

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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.