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Finding the Fourth Proportional to 78,798.45, 108,737.44 and 44,815.21

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Solution

The fourth proportional to 78,798.45, 108,737.44 and 44,815.21 is: 61,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,798.45 : 108,737.44 = 44,815.21 : x
  2. Step 2: Convert to fraction form
    78,798.45/108,737.44 = 44,815.21/x
  3. Step 3: Cross multiply
    78,798.45x = 108,737.44 × 44,815.21
  4. Step 4: Simplify right side
    78,798.45x = 4,873,090,824.58
  5. Step 5: Solve for x
    x = 4,873,090,824.58/78,798.45
  6. Step 6: Final answer
    x = 61,842.47

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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.