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Finding the Fourth Proportional to 78,855.33, 108,822.12 and 44,862.47

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Solution

The fourth proportional to 78,855.33, 108,822.12 and 44,862.47 is: 61,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,855.33 : 108,822.12 = 44,862.47 : x
  2. Step 2: Convert to fraction form
    78,855.33/108,822.12 = 44,862.47/x
  3. Step 3: Cross multiply
    78,855.33x = 108,822.12 × 44,862.47
  4. Step 4: Simplify right side
    78,855.33x = 4,882,028,549.73
  5. Step 5: Solve for x
    x = 4,882,028,549.73/78,855.33
  6. Step 6: Final answer
    x = 61,911.21

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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.