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Finding the Fourth Proportional to 80,459.88, 110,988.47 and 50,192.64

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Solution

The fourth proportional to 80,459.88, 110,988.47 and 50,192.64 is: 69,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,459.88 : 110,988.47 = 50,192.64 : x
  2. Step 2: Convert to fraction form
    80,459.88/110,988.47 = 50,192.64/x
  3. Step 3: Cross multiply
    80,459.88x = 110,988.47 × 50,192.64
  4. Step 4: Simplify right side
    80,459.88x = 5,570,804,067.90
  5. Step 5: Solve for x
    x = 5,570,804,067.90/80,459.88
  6. Step 6: Final answer
    x = 69,237.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.