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Finding the Fourth Proportional to 76,884.96, 106,071.60 and 46,659.48

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Solution

The fourth proportional to 76,884.96, 106,071.60 and 46,659.48 is: 64,372.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,884.96 : 106,071.60 = 46,659.48 : x
  2. Step 2: Convert to fraction form
    76,884.96/106,071.60 = 46,659.48/x
  3. Step 3: Cross multiply
    76,884.96x = 106,071.60 × 46,659.48
  4. Step 4: Simplify right side
    76,884.96x = 4,949,245,698.77
  5. Step 5: Solve for x
    x = 4,949,245,698.77/76,884.96
  6. Step 6: Final answer
    x = 64,372.09

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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.