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Finding the Fourth Proportional to 68,393.45, 102,626.30 and 48,531.29

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Solution

The fourth proportional to 68,393.45, 102,626.30 and 48,531.29 is: 72,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,393.45 : 102,626.30 = 48,531.29 : x
  2. Step 2: Convert to fraction form
    68,393.45/102,626.30 = 48,531.29/x
  3. Step 3: Cross multiply
    68,393.45x = 102,626.30 × 48,531.29
  4. Step 4: Simplify right side
    68,393.45x = 4,980,586,726.93
  5. Step 5: Solve for x
    x = 4,980,586,726.93/68,393.45
  6. Step 6: Final answer
    x = 72,822.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.