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Finding the Fourth Proportional to 68,300.70, 94,254.56 and 38,086.38

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Solution

The fourth proportional to 68,300.70, 94,254.56 and 38,086.38 is: 52,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,300.70 : 94,254.56 = 38,086.38 : x
  2. Step 2: Convert to fraction form
    68,300.70/94,254.56 = 38,086.38/x
  3. Step 3: Cross multiply
    68,300.70x = 94,254.56 × 38,086.38
  4. Step 4: Simplify right side
    68,300.70x = 3,589,814,988.89
  5. Step 5: Solve for x
    x = 3,589,814,988.89/68,300.70
  6. Step 6: Final answer
    x = 52,558.98

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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.