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Finding the Fourth Proportional to 336,937.32, 505,478.88 and 100,299.06

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Solution

The fourth proportional to 336,937.32, 505,478.88 and 100,299.06 is: 150,470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,937.32 : 505,478.88 = 100,299.06 : x
  2. Step 2: Convert to fraction form
    336,937.32/505,478.88 = 100,299.06/x
  3. Step 3: Cross multiply
    336,937.32x = 505,478.88 × 100,299.06
  4. Step 4: Simplify right side
    336,937.32x = 50,699,056,513.85
  5. Step 5: Solve for x
    x = 50,699,056,513.85/336,937.32
  6. Step 6: Final answer
    x = 150,470.29

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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.