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Finding the Fourth Proportional to 336,520.98, 504,879.88 and 99,869.81

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Solution

The fourth proportional to 336,520.98, 504,879.88 and 99,869.81 is: 149,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,520.98 : 504,879.88 = 99,869.81 : x
  2. Step 2: Convert to fraction form
    336,520.98/504,879.88 = 99,869.81/x
  3. Step 3: Cross multiply
    336,520.98x = 504,879.88 × 99,869.81
  4. Step 4: Simplify right side
    336,520.98x = 50,422,257,189.07
  5. Step 5: Solve for x
    x = 50,422,257,189.07/336,520.98
  6. Step 6: Final answer
    x = 149,833.92

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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.