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Finding the Fourth Proportional to 78,493.52, 108,316.68 and 44,961.68

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Solution

The fourth proportional to 78,493.52, 108,316.68 and 44,961.68 is: 62,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,493.52 : 108,316.68 = 44,961.68 : x
  2. Step 2: Convert to fraction form
    78,493.52/108,316.68 = 44,961.68/x
  3. Step 3: Cross multiply
    78,493.52x = 108,316.68 × 44,961.68
  4. Step 4: Simplify right side
    78,493.52x = 4,870,099,904.82
  5. Step 5: Solve for x
    x = 4,870,099,904.82/78,493.52
  6. Step 6: Final answer
    x = 62,044.61

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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.