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Finding the Fourth Proportional to 68,744.40, 103,056.60 and 26,653.20

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Solution

The fourth proportional to 68,744.40, 103,056.60 and 26,653.20 is: 39,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,744.40 : 103,056.60 = 26,653.20 : x
  2. Step 2: Convert to fraction form
    68,744.40/103,056.60 = 26,653.20/x
  3. Step 3: Cross multiply
    68,744.40x = 103,056.60 × 26,653.20
  4. Step 4: Simplify right side
    68,744.40x = 2,746,788,171.12
  5. Step 5: Solve for x
    x = 2,746,788,171.12/68,744.40
  6. Step 6: Final answer
    x = 39,956.54

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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.