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Finding the Fourth Proportional to 68,337.33, 94,316.49 and 56,986.80

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Solution

The fourth proportional to 68,337.33, 94,316.49 and 56,986.80 is: 78,650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,337.33 : 94,316.49 = 56,986.80 : x
  2. Step 2: Convert to fraction form
    68,337.33/94,316.49 = 56,986.80/x
  3. Step 3: Cross multiply
    68,337.33x = 94,316.49 × 56,986.80
  4. Step 4: Simplify right side
    68,337.33x = 5,374,794,952.33
  5. Step 5: Solve for x
    x = 5,374,794,952.33/68,337.33
  6. Step 6: Final answer
    x = 78,650.94

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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.