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Finding the Fourth Proportional to 102,994.80, 154,492.20 and 73,251.60

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Solution

The fourth proportional to 102,994.80, 154,492.20 and 73,251.60 is: 109,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,994.80 : 154,492.20 = 73,251.60 : x
  2. Step 2: Convert to fraction form
    102,994.80/154,492.20 = 73,251.60/x
  3. Step 3: Cross multiply
    102,994.80x = 154,492.20 × 73,251.60
  4. Step 4: Simplify right side
    102,994.80x = 11,316,800,837.52
  5. Step 5: Solve for x
    x = 11,316,800,837.52/102,994.80
  6. Step 6: Final answer
    x = 109,877.40

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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.