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Finding the Fourth Proportional to 68,957.70, 103,436.55 and 48,837.30

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Solution

The fourth proportional to 68,957.70, 103,436.55 and 48,837.30 is: 73,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,957.70 : 103,436.55 = 48,837.30 : x
  2. Step 2: Convert to fraction form
    68,957.70/103,436.55 = 48,837.30/x
  3. Step 3: Cross multiply
    68,957.70x = 103,436.55 × 48,837.30
  4. Step 4: Simplify right side
    68,957.70x = 5,051,561,823.32
  5. Step 5: Solve for x
    x = 5,051,561,823.32/68,957.70
  6. Step 6: Final answer
    x = 73,255.95

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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.