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Finding the Fourth Proportional to 325,220.90, 487,475.48 and 167,458.82

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Solution

The fourth proportional to 325,220.90, 487,475.48 and 167,458.82 is: 251,004.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,220.90 : 487,475.48 = 167,458.82 : x
  2. Step 2: Convert to fraction form
    325,220.90/487,475.48 = 167,458.82/x
  3. Step 3: Cross multiply
    325,220.90x = 487,475.48 × 167,458.82
  4. Step 4: Simplify right side
    325,220.90x = 81,632,066,222.36
  5. Step 5: Solve for x
    x = 81,632,066,222.36/325,220.90
  6. Step 6: Final answer
    x = 251,004.99

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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.