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Finding the Fourth Proportional to 80,488, 111,073.60 and 46,956.16

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Solution

The fourth proportional to 80,488, 111,073.60 and 46,956.16 is: 64,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,488 : 111,073.60 = 46,956.16 : x
  2. Step 2: Convert to fraction form
    80,488/111,073.60 = 46,956.16/x
  3. Step 3: Cross multiply
    80,488x = 111,073.60 × 46,956.16
  4. Step 4: Simplify right side
    80,488x = 5,215,589,733.38
  5. Step 5: Solve for x
    x = 5,215,589,733.38/80,488
  6. Step 6: Final answer
    x = 64,799.59

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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.