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Finding the Fourth Proportional to 48,845.40, 68,521.80 and 48,845.40

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Solution

The fourth proportional to 48,845.40, 68,521.80 and 48,845.40 is: 68,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,845.40 : 68,521.80 = 48,845.40 : x
  2. Step 2: Convert to fraction form
    48,845.40/68,521.80 = 48,845.40/x
  3. Step 3: Cross multiply
    48,845.40x = 68,521.80 × 48,845.40
  4. Step 4: Simplify right side
    48,845.40x = 3,346,974,729.72
  5. Step 5: Solve for x
    x = 3,346,974,729.72/48,845.40
  6. Step 6: Final answer
    x = 68,521.80

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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.