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Finding the Fourth Proportional to 242,698.80, 364,100.74 and 92,939.09

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Solution

The fourth proportional to 242,698.80, 364,100.74 and 92,939.09 is: 139,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,698.80 : 364,100.74 = 92,939.09 : x
  2. Step 2: Convert to fraction form
    242,698.80/364,100.74 = 92,939.09/x
  3. Step 3: Cross multiply
    242,698.80x = 364,100.74 × 92,939.09
  4. Step 4: Simplify right side
    242,698.80x = 33,839,191,443.93
  5. Step 5: Solve for x
    x = 33,839,191,443.93/242,698.80
  6. Step 6: Final answer
    x = 139,428.75

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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.