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Finding the Fourth Proportional to 133,483.41, 200,231.78 and 39,980.25

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Solution

The fourth proportional to 133,483.41, 200,231.78 and 39,980.25 is: 59,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,483.41 : 200,231.78 = 39,980.25 : x
  2. Step 2: Convert to fraction form
    133,483.41/200,231.78 = 39,980.25/x
  3. Step 3: Cross multiply
    133,483.41x = 200,231.78 × 39,980.25
  4. Step 4: Simplify right side
    133,483.41x = 8,005,316,422.44
  5. Step 5: Solve for x
    x = 8,005,316,422.44/133,483.41
  6. Step 6: Final answer
    x = 59,972.37

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1.5x scale

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.