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Finding the Fourth Proportional to 325,027.81, 487,415.35 and 111,755.22

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Solution

The fourth proportional to 325,027.81, 487,415.35 and 111,755.22 is: 167,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,027.81 : 487,415.35 = 111,755.22 : x
  2. Step 2: Convert to fraction form
    325,027.81/487,415.35 = 111,755.22/x
  3. Step 3: Cross multiply
    325,027.81x = 487,415.35 × 111,755.22
  4. Step 4: Simplify right side
    325,027.81x = 54,471,209,670.63
  5. Step 5: Solve for x
    x = 54,471,209,670.63/325,027.81
  6. Step 6: Final answer
    x = 167,589.38

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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.