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Finding the Fourth Proportional to 68,820.70, 94,872.04 and 48,641.98

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Solution

The fourth proportional to 68,820.70, 94,872.04 and 48,641.98 is: 67,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,820.70 : 94,872.04 = 48,641.98 : x
  2. Step 2: Convert to fraction form
    68,820.70/94,872.04 = 48,641.98/x
  3. Step 3: Cross multiply
    68,820.70x = 94,872.04 × 48,641.98
  4. Step 4: Simplify right side
    68,820.70x = 4,614,763,993.22
  5. Step 5: Solve for x
    x = 4,614,763,993.22/68,820.70
  6. Step 6: Final answer
    x = 67,054.88

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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.