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Finding the Fourth Proportional to 108,556.40, 163,007.40 and 73,650.80

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Solution

The fourth proportional to 108,556.40, 163,007.40 and 73,650.80 is: 110,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,556.40 : 163,007.40 = 73,650.80 : x
  2. Step 2: Convert to fraction form
    108,556.40/163,007.40 = 73,650.80/x
  3. Step 3: Cross multiply
    108,556.40x = 163,007.40 × 73,650.80
  4. Step 4: Simplify right side
    108,556.40x = 12,005,625,415.92
  5. Step 5: Solve for x
    x = 12,005,625,415.92/108,556.40
  6. Step 6: Final answer
    x = 110,593.44

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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.