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Finding the Fourth Proportional to 79,473.02, 109,613.79 and 74,713.64

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Solution

The fourth proportional to 79,473.02, 109,613.79 and 74,713.64 is: 103,049.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473.02 : 109,613.79 = 74,713.64 : x
  2. Step 2: Convert to fraction form
    79,473.02/109,613.79 = 74,713.64/x
  3. Step 3: Cross multiply
    79,473.02x = 109,613.79 × 74,713.64
  4. Step 4: Simplify right side
    79,473.02x = 8,189,644,697.03
  5. Step 5: Solve for x
    x = 8,189,644,697.03/79,473.02
  6. Step 6: Final answer
    x = 103,049.38

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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.