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Finding the Fourth Proportional to 194,698, 268,692.60 and 109,813.12

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Solution

The fourth proportional to 194,698, 268,692.60 and 109,813.12 is: 151,547.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,698 : 268,692.60 = 109,813.12 : x
  2. Step 2: Convert to fraction form
    194,698/268,692.60 = 109,813.12/x
  3. Step 3: Cross multiply
    194,698x = 268,692.60 × 109,813.12
  4. Step 4: Simplify right side
    194,698x = 29,505,972,726.91
  5. Step 5: Solve for x
    x = 29,505,972,726.91/194,698
  6. Step 6: Final answer
    x = 151,547.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.