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Finding the Fourth Proportional to 108,714.80, 163,064.10 and 45,518.60

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Solution

The fourth proportional to 108,714.80, 163,064.10 and 45,518.60 is: 68,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,714.80 : 163,064.10 = 45,518.60 : x
  2. Step 2: Convert to fraction form
    108,714.80/163,064.10 = 45,518.60/x
  3. Step 3: Cross multiply
    108,714.80x = 163,064.10 × 45,518.60
  4. Step 4: Simplify right side
    108,714.80x = 7,422,449,542.26
  5. Step 5: Solve for x
    x = 7,422,449,542.26/108,714.80
  6. Step 6: Final answer
    x = 68,274.51

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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.