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Finding the Fourth Proportional to 68,920.80, 95,103.48 and 46,255.20

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Solution

The fourth proportional to 68,920.80, 95,103.48 and 46,255.20 is: 63,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,920.80 : 95,103.48 = 46,255.20 : x
  2. Step 2: Convert to fraction form
    68,920.80/95,103.48 = 46,255.20/x
  3. Step 3: Cross multiply
    68,920.80x = 95,103.48 × 46,255.20
  4. Step 4: Simplify right side
    68,920.80x = 4,399,030,488.10
  5. Step 5: Solve for x
    x = 4,399,030,488.10/68,920.80
  6. Step 6: Final answer
    x = 63,827.33

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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.