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Finding the Fourth Proportional to 175,437.80, 263,415.90 and 136,039.40

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Solution

The fourth proportional to 175,437.80, 263,415.90 and 136,039.40 is: 204,260.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,437.80 : 263,415.90 = 136,039.40 : x
  2. Step 2: Convert to fraction form
    175,437.80/263,415.90 = 136,039.40/x
  3. Step 3: Cross multiply
    175,437.80x = 263,415.90 × 136,039.40
  4. Step 4: Simplify right side
    175,437.80x = 35,834,940,986.46
  5. Step 5: Solve for x
    x = 35,834,940,986.46/175,437.80
  6. Step 6: Final answer
    x = 204,260.09

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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.