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Finding the Fourth Proportional to 135,467.41, 186,936.80 and 75,034.53

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Solution

The fourth proportional to 135,467.41, 186,936.80 and 75,034.53 is: 103,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,467.41 : 186,936.80 = 75,034.53 : x
  2. Step 2: Convert to fraction form
    135,467.41/186,936.80 = 75,034.53/x
  3. Step 3: Cross multiply
    135,467.41x = 186,936.80 × 75,034.53
  4. Step 4: Simplify right side
    135,467.41x = 14,026,714,927.70
  5. Step 5: Solve for x
    x = 14,026,714,927.70/135,467.41
  6. Step 6: Final answer
    x = 103,543.10

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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.