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Finding the Fourth Proportional to 193,279.66, 289,607.83 and 104,574.94

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Solution

The fourth proportional to 193,279.66, 289,607.83 and 104,574.94 is: 156,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,279.66 : 289,607.83 = 104,574.94 : x
  2. Step 2: Convert to fraction form
    193,279.66/289,607.83 = 104,574.94/x
  3. Step 3: Cross multiply
    193,279.66x = 289,607.83 × 104,574.94
  4. Step 4: Simplify right side
    193,279.66x = 30,285,720,460.32
  5. Step 5: Solve for x
    x = 30,285,720,460.32/193,279.66
  6. Step 6: Final answer
    x = 156,693.78

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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.