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Finding the Fourth Proportional to 84,117.28, 116,081.88 and 46,393.96

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Solution

The fourth proportional to 84,117.28, 116,081.88 and 46,393.96 is: 64,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,117.28 : 116,081.88 = 46,393.96 : x
  2. Step 2: Convert to fraction form
    84,117.28/116,081.88 = 46,393.96/x
  3. Step 3: Cross multiply
    84,117.28x = 116,081.88 × 46,393.96
  4. Step 4: Simplify right side
    84,117.28x = 5,385,498,097.44
  5. Step 5: Solve for x
    x = 5,385,498,097.44/84,117.28
  6. Step 6: Final answer
    x = 64,023.68

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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.