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Finding the Fourth Proportional to 416,366.64, 624,572.27 and 132,078.78

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Solution

The fourth proportional to 416,366.64, 624,572.27 and 132,078.78 is: 198,125.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,366.64 : 624,572.27 = 132,078.78 : x
  2. Step 2: Convert to fraction form
    416,366.64/624,572.27 = 132,078.78/x
  3. Step 3: Cross multiply
    416,366.64x = 624,572.27 × 132,078.78
  4. Step 4: Simplify right side
    416,366.64x = 82,492,743,443.43
  5. Step 5: Solve for x
    x = 82,492,743,443.43/416,366.64
  6. Step 6: Final answer
    x = 198,125.25

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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.