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Finding the Fourth Proportional to 451,957.60, 677,975.80 and 148,260.70

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Solution

The fourth proportional to 451,957.60, 677,975.80 and 148,260.70 is: 222,403.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,957.60 : 677,975.80 = 148,260.70 : x
  2. Step 2: Convert to fraction form
    451,957.60/677,975.80 = 148,260.70/x
  3. Step 3: Cross multiply
    451,957.60x = 677,975.80 × 148,260.70
  4. Step 4: Simplify right side
    451,957.60x = 100,517,166,691.06
  5. Step 5: Solve for x
    x = 100,517,166,691.06/451,957.60
  6. Step 6: Final answer
    x = 222,403.97

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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.