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Finding the Fourth Proportional to 106,873.60, 160,540.80 and 102,956.80

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Solution

The fourth proportional to 106,873.60, 160,540.80 and 102,956.80 is: 154,657.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,873.60 : 160,540.80 = 102,956.80 : x
  2. Step 2: Convert to fraction form
    106,873.60/160,540.80 = 102,956.80/x
  3. Step 3: Cross multiply
    106,873.60x = 160,540.80 × 102,956.80
  4. Step 4: Simplify right side
    106,873.60x = 16,528,767,037.44
  5. Step 5: Solve for x
    x = 16,528,767,037.44/106,873.60
  6. Step 6: Final answer
    x = 154,657.16

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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.