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Finding the Fourth Proportional to 78,897.43, 108,879.20 and 44,904.25

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Solution

The fourth proportional to 78,897.43, 108,879.20 and 44,904.25 is: 61,968.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,897.43 : 108,879.20 = 44,904.25 : x
  2. Step 2: Convert to fraction form
    78,897.43/108,879.20 = 44,904.25/x
  3. Step 3: Cross multiply
    78,897.43x = 108,879.20 × 44,904.25
  4. Step 4: Simplify right side
    78,897.43x = 4,889,138,816.60
  5. Step 5: Solve for x
    x = 4,889,138,816.60/78,897.43
  6. Step 6: Final answer
    x = 61,968.29

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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.