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Finding the Fourth Proportional to 174,762.49, 261,579.89 and 90,406.49

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Solution

The fourth proportional to 174,762.49, 261,579.89 and 90,406.49 is: 135,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,762.49 : 261,579.89 = 90,406.49 : x
  2. Step 2: Convert to fraction form
    174,762.49/261,579.89 = 90,406.49/x
  3. Step 3: Cross multiply
    174,762.49x = 261,579.89 × 90,406.49
  4. Step 4: Simplify right side
    174,762.49x = 23,648,519,257.45
  5. Step 5: Solve for x
    x = 23,648,519,257.45/174,762.49
  6. Step 6: Final answer
    x = 135,318.05

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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.