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Finding the Fourth Proportional to 174,605.56, 261,563.48 and 136,978.24

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Solution

The fourth proportional to 174,605.56, 261,563.48 and 136,978.24 is: 205,196.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,605.56 : 261,563.48 = 136,978.24 : x
  2. Step 2: Convert to fraction form
    174,605.56/261,563.48 = 136,978.24/x
  3. Step 3: Cross multiply
    174,605.56x = 261,563.48 × 136,978.24
  4. Step 4: Simplify right side
    174,605.56x = 35,828,505,138.68
  5. Step 5: Solve for x
    x = 35,828,505,138.68/174,605.56
  6. Step 6: Final answer
    x = 205,196.82

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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.