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Finding the Fourth Proportional to 133,839.98, 200,750.58 and 62,778.21

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Solution

The fourth proportional to 133,839.98, 200,750.58 and 62,778.21 is: 94,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,839.98 : 200,750.58 = 62,778.21 : x
  2. Step 2: Convert to fraction form
    133,839.98/200,750.58 = 62,778.21/x
  3. Step 3: Cross multiply
    133,839.98x = 200,750.58 × 62,778.21
  4. Step 4: Simplify right side
    133,839.98x = 12,602,761,316.05
  5. Step 5: Solve for x
    x = 12,602,761,316.05/133,839.98
  6. Step 6: Final answer
    x = 94,162.90

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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.