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Finding the Fourth Proportional to 445,918.01, 668,874.56 and 108,960.53

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Solution

The fourth proportional to 445,918.01, 668,874.56 and 108,960.53 is: 163,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,918.01 : 668,874.56 = 108,960.53 : x
  2. Step 2: Convert to fraction form
    445,918.01/668,874.56 = 108,960.53/x
  3. Step 3: Cross multiply
    445,918.01x = 668,874.56 × 108,960.53
  4. Step 4: Simplify right side
    445,918.01x = 72,880,922,671.94
  5. Step 5: Solve for x
    x = 72,880,922,671.94/445,918.01
  6. Step 6: Final answer
    x = 163,440.19

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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.