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Finding the Fourth Proportional to 291,069.28, 401,675.01 and 163,744.97

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Solution

The fourth proportional to 291,069.28, 401,675.01 and 163,744.97 is: 225,967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,069.28 : 401,675.01 = 163,744.97 : x
  2. Step 2: Convert to fraction form
    291,069.28/401,675.01 = 163,744.97/x
  3. Step 3: Cross multiply
    291,069.28x = 401,675.01 × 163,744.97
  4. Step 4: Simplify right side
    291,069.28x = 65,772,262,462.20
  5. Step 5: Solve for x
    x = 65,772,262,462.20/291,069.28
  6. Step 6: Final answer
    x = 225,967.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.