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Finding the Fourth Proportional to 48,845.20, 68,538.80 and 48,845.20

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Solution

The fourth proportional to 48,845.20, 68,538.80 and 48,845.20 is: 68,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,845.20 : 68,538.80 = 48,845.20 : x
  2. Step 2: Convert to fraction form
    48,845.20/68,538.80 = 48,845.20/x
  3. Step 3: Cross multiply
    48,845.20x = 68,538.80 × 48,845.20
  4. Step 4: Simplify right side
    48,845.20x = 3,347,791,393.76
  5. Step 5: Solve for x
    x = 3,347,791,393.76/48,845.20
  6. Step 6: Final answer
    x = 68,538.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.