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Finding the Fourth Proportional to 161,843.60, 242,650.20 and 61,965.20

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Solution

The fourth proportional to 161,843.60, 242,650.20 and 61,965.20 is: 92,903.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,843.60 : 242,650.20 = 61,965.20 : x
  2. Step 2: Convert to fraction form
    161,843.60/242,650.20 = 61,965.20/x
  3. Step 3: Cross multiply
    161,843.60x = 242,650.20 × 61,965.20
  4. Step 4: Simplify right side
    161,843.60x = 15,035,868,173.04
  5. Step 5: Solve for x
    x = 15,035,868,173.04/161,843.60
  6. Step 6: Final answer
    x = 92,903.69

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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.