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Finding the Fourth Proportional to 248,143.35, 372,051.69 and 163,645.88

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Solution

The fourth proportional to 248,143.35, 372,051.69 and 163,645.88 is: 245,361.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,143.35 : 372,051.69 = 163,645.88 : x
  2. Step 2: Convert to fraction form
    248,143.35/372,051.69 = 163,645.88/x
  3. Step 3: Cross multiply
    248,143.35x = 372,051.69 × 163,645.88
  4. Step 4: Simplify right side
    248,143.35x = 60,884,724,355.28
  5. Step 5: Solve for x
    x = 60,884,724,355.28/248,143.35
  6. Step 6: Final answer
    x = 245,361.09

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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.