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Finding the Fourth Proportional to 118,353.78, 177,469.46 and 43,454.70

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Solution

The fourth proportional to 118,353.78, 177,469.46 and 43,454.70 is: 65,159.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,353.78 : 177,469.46 = 43,454.70 : x
  2. Step 2: Convert to fraction form
    118,353.78/177,469.46 = 43,454.70/x
  3. Step 3: Cross multiply
    118,353.78x = 177,469.46 × 43,454.70
  4. Step 4: Simplify right side
    118,353.78x = 7,711,882,143.46
  5. Step 5: Solve for x
    x = 7,711,882,143.46/118,353.78
  6. Step 6: Final answer
    x = 65,159.58

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1.5x scale

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.