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Finding the Fourth Proportional to 68,925.25, 103,295.90 and 36,838.55

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Solution

The fourth proportional to 68,925.25, 103,295.90 and 36,838.55 is: 55,208.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,925.25 : 103,295.90 = 36,838.55 : x
  2. Step 2: Convert to fraction form
    68,925.25/103,295.90 = 36,838.55/x
  3. Step 3: Cross multiply
    68,925.25x = 103,295.90 × 36,838.55
  4. Step 4: Simplify right side
    68,925.25x = 3,805,270,476.27
  5. Step 5: Solve for x
    x = 3,805,270,476.27/68,925.25
  6. Step 6: Final answer
    x = 55,208.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.