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Finding the Fourth Proportional to 451,129.86, 676,647.10 and 237,812.31

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Solution

The fourth proportional to 451,129.86, 676,647.10 and 237,812.31 is: 356,693.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,129.86 : 676,647.10 = 237,812.31 : x
  2. Step 2: Convert to fraction form
    451,129.86/676,647.10 = 237,812.31/x
  3. Step 3: Cross multiply
    451,129.86x = 676,647.10 × 237,812.31
  4. Step 4: Simplify right side
    451,129.86x = 160,915,009,905.80
  5. Step 5: Solve for x
    x = 160,915,009,905.80/451,129.86
  6. Step 6: Final answer
    x = 356,693.33

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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.