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Finding the Fourth Proportional to 481,342.50, 722,052.63 and 148,918.50

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Solution

The fourth proportional to 481,342.50, 722,052.63 and 148,918.50 is: 223,389.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,342.50 : 722,052.63 = 148,918.50 : x
  2. Step 2: Convert to fraction form
    481,342.50/722,052.63 = 148,918.50/x
  3. Step 3: Cross multiply
    481,342.50x = 722,052.63 × 148,918.50
  4. Step 4: Simplify right side
    481,342.50x = 107,526,994,580.66
  5. Step 5: Solve for x
    x = 107,526,994,580.66/481,342.50
  6. Step 6: Final answer
    x = 223,389.78

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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.