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Finding the Fourth Proportional to 417,200.90, 625,363.95 and 164,383.70

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Solution

The fourth proportional to 417,200.90, 625,363.95 and 164,383.70 is: 246,403.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,200.90 : 625,363.95 = 164,383.70 : x
  2. Step 2: Convert to fraction form
    417,200.90/625,363.95 = 164,383.70/x
  3. Step 3: Cross multiply
    417,200.90x = 625,363.95 × 164,383.70
  4. Step 4: Simplify right side
    417,200.90x = 102,799,639,947.62
  5. Step 5: Solve for x
    x = 102,799,639,947.62/417,200.90
  6. Step 6: Final answer
    x = 246,403.21

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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.