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Finding the Fourth Proportional to 135,927.40, 203,891.10 and 135,927.40

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Solution

The fourth proportional to 135,927.40, 203,891.10 and 135,927.40 is: 203,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,927.40 : 203,891.10 = 135,927.40 : x
  2. Step 2: Convert to fraction form
    135,927.40/203,891.10 = 135,927.40/x
  3. Step 3: Cross multiply
    135,927.40x = 203,891.10 × 135,927.40
  4. Step 4: Simplify right side
    135,927.40x = 27,714,387,106.14
  5. Step 5: Solve for x
    x = 27,714,387,106.14/135,927.40
  6. Step 6: Final answer
    x = 203,891.10

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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.