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Finding the Fourth Proportional to 220,699.61, 331,052.49 and 62,928.12

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Solution

The fourth proportional to 220,699.61, 331,052.49 and 62,928.12 is: 94,393.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,699.61 : 331,052.49 = 62,928.12 : x
  2. Step 2: Convert to fraction form
    220,699.61/331,052.49 = 62,928.12/x
  3. Step 3: Cross multiply
    220,699.61x = 331,052.49 × 62,928.12
  4. Step 4: Simplify right side
    220,699.61x = 20,832,510,817.02
  5. Step 5: Solve for x
    x = 20,832,510,817.02/220,699.61
  6. Step 6: Final answer
    x = 94,393.06

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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.