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Finding the Fourth Proportional to 268,079.10, 401,506.02 and 127,936.14

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Solution

The fourth proportional to 268,079.10, 401,506.02 and 127,936.14 is: 191,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,079.10 : 401,506.02 = 127,936.14 : x
  2. Step 2: Convert to fraction form
    268,079.10/401,506.02 = 127,936.14/x
  3. Step 3: Cross multiply
    268,079.10x = 401,506.02 × 127,936.14
  4. Step 4: Simplify right side
    268,079.10x = 51,367,130,385.56
  5. Step 5: Solve for x
    x = 51,367,130,385.56/268,079.10
  6. Step 6: Final answer
    x = 191,611.84

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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.