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Finding the Fourth Proportional to 416,916, 625,367.39 and 132,602.45

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Solution

The fourth proportional to 416,916, 625,367.39 and 132,602.45 is: 198,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,916 : 625,367.39 = 132,602.45 : x
  2. Step 2: Convert to fraction form
    416,916/625,367.39 = 132,602.45/x
  3. Step 3: Cross multiply
    416,916x = 625,367.39 × 132,602.45
  4. Step 4: Simplify right side
    416,916x = 82,925,244,274.26
  5. Step 5: Solve for x
    x = 82,925,244,274.26/416,916
  6. Step 6: Final answer
    x = 198,901.56

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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.