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Finding the Fourth Proportional to 118,207.80, 177,311.70 and 73,884.60

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Solution

The fourth proportional to 118,207.80, 177,311.70 and 73,884.60 is: 110,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,207.80 : 177,311.70 = 73,884.60 : x
  2. Step 2: Convert to fraction form
    118,207.80/177,311.70 = 73,884.60/x
  3. Step 3: Cross multiply
    118,207.80x = 177,311.70 × 73,884.60
  4. Step 4: Simplify right side
    118,207.80x = 13,100,604,029.82
  5. Step 5: Solve for x
    x = 13,100,604,029.82/118,207.80
  6. Step 6: Final answer
    x = 110,826.90

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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.