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Finding the Fourth Proportional to 78,508.44, 108,305.91 and 46,659.24

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Solution

The fourth proportional to 78,508.44, 108,305.91 and 46,659.24 is: 64,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,508.44 : 108,305.91 = 46,659.24 : x
  2. Step 2: Convert to fraction form
    78,508.44/108,305.91 = 46,659.24/x
  3. Step 3: Cross multiply
    78,508.44x = 108,305.91 × 46,659.24
  4. Step 4: Simplify right side
    78,508.44x = 5,053,471,448.11
  5. Step 5: Solve for x
    x = 5,053,471,448.11/78,508.44
  6. Step 6: Final answer
    x = 64,368.51

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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.