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Finding the Fourth Proportional to 336,522.40, 504,772.64 and 136,789.12

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Solution

The fourth proportional to 336,522.40, 504,772.64 and 136,789.12 is: 205,179.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,522.40 : 504,772.64 = 136,789.12 : x
  2. Step 2: Convert to fraction form
    336,522.40/504,772.64 = 136,789.12/x
  3. Step 3: Cross multiply
    336,522.40x = 504,772.64 × 136,789.12
  4. Step 4: Simplify right side
    336,522.40x = 69,047,405,225.68
  5. Step 5: Solve for x
    x = 69,047,405,225.68/336,522.40
  6. Step 6: Final answer
    x = 205,179.22

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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.