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Finding the Fourth Proportional to 245,134.76, 367,900.79 and 126,839.93

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Solution

The fourth proportional to 245,134.76, 367,900.79 and 126,839.93 is: 190,362.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,134.76 : 367,900.79 = 126,839.93 : x
  2. Step 2: Convert to fraction form
    245,134.76/367,900.79 = 126,839.93/x
  3. Step 3: Cross multiply
    245,134.76x = 367,900.79 × 126,839.93
  4. Step 4: Simplify right side
    245,134.76x = 46,664,507,976.84
  5. Step 5: Solve for x
    x = 46,664,507,976.84/245,134.76
  6. Step 6: Final answer
    x = 190,362.68

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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.