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Finding the Fourth Proportional to 108,573.60, 162,860.40 and 73,144.20

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Solution

The fourth proportional to 108,573.60, 162,860.40 and 73,144.20 is: 109,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,573.60 : 162,860.40 = 73,144.20 : x
  2. Step 2: Convert to fraction form
    108,573.60/162,860.40 = 73,144.20/x
  3. Step 3: Cross multiply
    108,573.60x = 162,860.40 × 73,144.20
  4. Step 4: Simplify right side
    108,573.60x = 11,912,293,669.68
  5. Step 5: Solve for x
    x = 11,912,293,669.68/108,573.60
  6. Step 6: Final answer
    x = 109,716.30

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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.