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Finding the Fourth Proportional to 108,843.88, 163,301.08 and 53,401

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Solution

The fourth proportional to 108,843.88, 163,301.08 and 53,401 is: 80,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,843.88 : 163,301.08 = 53,401 : x
  2. Step 2: Convert to fraction form
    108,843.88/163,301.08 = 53,401/x
  3. Step 3: Cross multiply
    108,843.88x = 163,301.08 × 53,401
  4. Step 4: Simplify right side
    108,843.88x = 8,720,440,973.08
  5. Step 5: Solve for x
    x = 8,720,440,973.08/108,843.88
  6. Step 6: Final answer
    x = 80,118.80

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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.