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Finding the Fourth Proportional to 416,623.59, 624,967.79 and 136,169.19

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Solution

The fourth proportional to 416,623.59, 624,967.79 and 136,169.19 is: 204,264.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,623.59 : 624,967.79 = 136,169.19 : x
  2. Step 2: Convert to fraction form
    416,623.59/624,967.79 = 136,169.19/x
  3. Step 3: Cross multiply
    416,623.59x = 624,967.79 × 136,169.19
  4. Step 4: Simplify right side
    416,623.59x = 85,101,357,059.54
  5. Step 5: Solve for x
    x = 85,101,357,059.54/416,623.59
  6. Step 6: Final answer
    x = 204,264.37

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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.