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Finding the Fourth Proportional to 118,011.80, 176,993.10 and 43,167.20

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Solution

The fourth proportional to 118,011.80, 176,993.10 and 43,167.20 is: 64,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,011.80 : 176,993.10 = 43,167.20 : x
  2. Step 2: Convert to fraction form
    118,011.80/176,993.10 = 43,167.20/x
  3. Step 3: Cross multiply
    118,011.80x = 176,993.10 × 43,167.20
  4. Step 4: Simplify right side
    118,011.80x = 7,640,296,546.32
  5. Step 5: Solve for x
    x = 7,640,296,546.32/118,011.80
  6. Step 6: Final answer
    x = 64,741.80

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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.