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Finding the Fourth Proportional to 68,821.70, 94,873.42 and 48,642.98

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Solution

The fourth proportional to 68,821.70, 94,873.42 and 48,642.98 is: 67,056.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,821.70 : 94,873.42 = 48,642.98 : x
  2. Step 2: Convert to fraction form
    68,821.70/94,873.42 = 48,642.98/x
  3. Step 3: Cross multiply
    68,821.70x = 94,873.42 × 48,642.98
  4. Step 4: Simplify right side
    68,821.70x = 4,614,925,871.59
  5. Step 5: Solve for x
    x = 4,614,925,871.59/68,821.70
  6. Step 6: Final answer
    x = 67,056.26

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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.