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Finding the Fourth Proportional to 68,352.12, 94,326 and 38,136.60

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Solution

The fourth proportional to 68,352.12, 94,326 and 38,136.60 is: 52,628.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352.12 : 94,326 = 38,136.60 : x
  2. Step 2: Convert to fraction form
    68,352.12/94,326 = 38,136.60/x
  3. Step 3: Cross multiply
    68,352.12x = 94,326 × 38,136.60
  4. Step 4: Simplify right side
    68,352.12x = 3,597,272,931.60
  5. Step 5: Solve for x
    x = 3,597,272,931.60/68,352.12
  6. Step 6: Final answer
    x = 52,628.55

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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.