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Finding the Fourth Proportional to 169,909.68, 254,858.72 and 43,551.20

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Solution

The fourth proportional to 169,909.68, 254,858.72 and 43,551.20 is: 65,325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,909.68 : 254,858.72 = 43,551.20 : x
  2. Step 2: Convert to fraction form
    169,909.68/254,858.72 = 43,551.20/x
  3. Step 3: Cross multiply
    169,909.68x = 254,858.72 × 43,551.20
  4. Step 4: Simplify right side
    169,909.68x = 11,099,403,086.46
  5. Step 5: Solve for x
    x = 11,099,403,086.46/169,909.68
  6. Step 6: Final answer
    x = 65,325.31

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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.