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Finding the Fourth Proportional to 133,751.25, 200,485.48 and 49,457.28

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Solution

The fourth proportional to 133,751.25, 200,485.48 and 49,457.28 is: 74,133.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,751.25 : 200,485.48 = 49,457.28 : x
  2. Step 2: Convert to fraction form
    133,751.25/200,485.48 = 49,457.28/x
  3. Step 3: Cross multiply
    133,751.25x = 200,485.48 × 49,457.28
  4. Step 4: Simplify right side
    133,751.25x = 9,915,467,241.20
  5. Step 5: Solve for x
    x = 9,915,467,241.20/133,751.25
  6. Step 6: Final answer
    x = 74,133.64

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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.