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Finding the Fourth Proportional to 118,405.45, 177,604.08 and 29,659.72

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Solution

The fourth proportional to 118,405.45, 177,604.08 and 29,659.72 is: 44,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,405.45 : 177,604.08 = 29,659.72 : x
  2. Step 2: Convert to fraction form
    118,405.45/177,604.08 = 29,659.72/x
  3. Step 3: Cross multiply
    118,405.45x = 177,604.08 × 29,659.72
  4. Step 4: Simplify right side
    118,405.45x = 5,267,687,283.66
  5. Step 5: Solve for x
    x = 5,267,687,283.66/118,405.45
  6. Step 6: Final answer
    x = 44,488.55

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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.