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Finding the Fourth Proportional to 84,397.60, 116,451.84 and 46,664.56

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Solution

The fourth proportional to 84,397.60, 116,451.84 and 46,664.56 is: 64,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,397.60 : 116,451.84 = 46,664.56 : x
  2. Step 2: Convert to fraction form
    84,397.60/116,451.84 = 46,664.56/x
  3. Step 3: Cross multiply
    84,397.60x = 116,451.84 × 46,664.56
  4. Step 4: Simplify right side
    84,397.60x = 5,434,173,874.79
  5. Step 5: Solve for x
    x = 5,434,173,874.79/84,397.60
  6. Step 6: Final answer
    x = 64,387.78

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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.