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Finding the Fourth Proportional to 194,346.92, 291,675.88 and 100,879.40

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Solution

The fourth proportional to 194,346.92, 291,675.88 and 100,879.40 is: 151,399.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,346.92 : 291,675.88 = 100,879.40 : x
  2. Step 2: Convert to fraction form
    194,346.92/291,675.88 = 100,879.40/x
  3. Step 3: Cross multiply
    194,346.92x = 291,675.88 × 100,879.40
  4. Step 4: Simplify right side
    194,346.92x = 29,424,087,768.87
  5. Step 5: Solve for x
    x = 29,424,087,768.87/194,346.92
  6. Step 6: Final answer
    x = 151,399.82

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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.