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Finding the Fourth Proportional to 118,297.20, 177,445.80 and 107,410.80

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Solution

The fourth proportional to 118,297.20, 177,445.80 and 107,410.80 is: 161,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,297.20 : 177,445.80 = 107,410.80 : x
  2. Step 2: Convert to fraction form
    118,297.20/177,445.80 = 107,410.80/x
  3. Step 3: Cross multiply
    118,297.20x = 177,445.80 × 107,410.80
  4. Step 4: Simplify right side
    118,297.20x = 19,059,595,334.64
  5. Step 5: Solve for x
    x = 19,059,595,334.64/118,297.20
  6. Step 6: Final answer
    x = 161,116.20

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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.