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Finding the Fourth Proportional to 291,190.56, 436,890.93 and 101,678.85

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Solution

The fourth proportional to 291,190.56, 436,890.93 and 101,678.85 is: 152,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,190.56 : 436,890.93 = 101,678.85 : x
  2. Step 2: Convert to fraction form
    291,190.56/436,890.93 = 101,678.85/x
  3. Step 3: Cross multiply
    291,190.56x = 436,890.93 × 101,678.85
  4. Step 4: Simplify right side
    291,190.56x = 44,422,567,337.83
  5. Step 5: Solve for x
    x = 44,422,567,337.83/291,190.56
  6. Step 6: Final answer
    x = 152,554.97

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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.