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Finding the Fourth Proportional to 336,518.36, 504,872.92 and 136,981.94

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Solution

The fourth proportional to 336,518.36, 504,872.92 and 136,981.94 is: 205,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,518.36 : 504,872.92 = 136,981.94 : x
  2. Step 2: Convert to fraction form
    336,518.36/504,872.92 = 136,981.94/x
  3. Step 3: Cross multiply
    336,518.36x = 504,872.92 × 136,981.94
  4. Step 4: Simplify right side
    336,518.36x = 69,158,472,035.06
  5. Step 5: Solve for x
    x = 69,158,472,035.06/336,518.36
  6. Step 6: Final answer
    x = 205,511.74

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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.