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Finding the Fourth Proportional to 242,901.10, 364,242.30 and 109,712.80

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Solution

The fourth proportional to 242,901.10, 364,242.30 and 109,712.80 is: 164,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,901.10 : 364,242.30 = 109,712.80 : x
  2. Step 2: Convert to fraction form
    242,901.10/364,242.30 = 109,712.80/x
  3. Step 3: Cross multiply
    242,901.10x = 364,242.30 × 109,712.80
  4. Step 4: Simplify right side
    242,901.10x = 39,962,042,611.44
  5. Step 5: Solve for x
    x = 39,962,042,611.44/242,901.10
  6. Step 6: Final answer
    x = 164,519.81

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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.