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Finding the Fourth Proportional to 224,195.74, 336,342.81 and 66,436.54

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Solution

The fourth proportional to 224,195.74, 336,342.81 and 66,436.54 is: 99,669.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,195.74 : 336,342.81 = 66,436.54 : x
  2. Step 2: Convert to fraction form
    224,195.74/336,342.81 = 66,436.54/x
  3. Step 3: Cross multiply
    224,195.74x = 336,342.81 × 66,436.54
  4. Step 4: Simplify right side
    224,195.74x = 22,345,452,550.28
  5. Step 5: Solve for x
    x = 22,345,452,550.28/224,195.74
  6. Step 6: Final answer
    x = 99,669.39

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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.