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Finding the Fourth Proportional to 118,537.80, 163,300.50 and 82,662.60

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Solution

The fourth proportional to 118,537.80, 163,300.50 and 82,662.60 is: 113,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,537.80 : 163,300.50 = 82,662.60 : x
  2. Step 2: Convert to fraction form
    118,537.80/163,300.50 = 82,662.60/x
  3. Step 3: Cross multiply
    118,537.80x = 163,300.50 × 82,662.60
  4. Step 4: Simplify right side
    118,537.80x = 13,498,843,911.30
  5. Step 5: Solve for x
    x = 13,498,843,911.30/118,537.80
  6. Step 6: Final answer
    x = 113,877.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.