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Finding the Fourth Proportional to 354,144.50, 531,320.79 and 104,832.98

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Solution

The fourth proportional to 354,144.50, 531,320.79 and 104,832.98 is: 157,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,144.50 : 531,320.79 = 104,832.98 : x
  2. Step 2: Convert to fraction form
    354,144.50/531,320.79 = 104,832.98/x
  3. Step 3: Cross multiply
    354,144.50x = 531,320.79 × 104,832.98
  4. Step 4: Simplify right side
    354,144.50x = 55,699,941,751.65
  5. Step 5: Solve for x
    x = 55,699,941,751.65/354,144.50
  6. Step 6: Final answer
    x = 157,280.27

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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.