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Finding the Fourth Proportional to 80,378.36, 110,931.28 and 46,395.97

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Solution

The fourth proportional to 80,378.36, 110,931.28 and 46,395.97 is: 64,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,378.36 : 110,931.28 = 46,395.97 : x
  2. Step 2: Convert to fraction form
    80,378.36/110,931.28 = 46,395.97/x
  3. Step 3: Cross multiply
    80,378.36x = 110,931.28 × 46,395.97
  4. Step 4: Simplify right side
    80,378.36x = 5,146,764,221.44
  5. Step 5: Solve for x
    x = 5,146,764,221.44/80,378.36
  6. Step 6: Final answer
    x = 64,031.71

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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.