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Finding the Fourth Proportional to 78,904.73, 108,884.35 and 44,907.82

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Solution

The fourth proportional to 78,904.73, 108,884.35 and 44,907.82 is: 61,970.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,904.73 : 108,884.35 = 44,907.82 : x
  2. Step 2: Convert to fraction form
    78,904.73/108,884.35 = 44,907.82/x
  3. Step 3: Cross multiply
    78,904.73x = 108,884.35 × 44,907.82
  4. Step 4: Simplify right side
    78,904.73x = 4,889,758,574.54
  5. Step 5: Solve for x
    x = 4,889,758,574.54/78,904.73
  6. Step 6: Final answer
    x = 61,970.41

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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.