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Finding the Fourth Proportional to 169,475.60, 253,903.56 and 79,352.97

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Solution

The fourth proportional to 169,475.60, 253,903.56 and 79,352.97 is: 118,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,475.60 : 253,903.56 = 79,352.97 : x
  2. Step 2: Convert to fraction form
    169,475.60/253,903.56 = 79,352.97/x
  3. Step 3: Cross multiply
    169,475.60x = 253,903.56 × 79,352.97
  4. Step 4: Simplify right side
    169,475.60x = 20,148,001,579.57
  5. Step 5: Solve for x
    x = 20,148,001,579.57/169,475.60
  6. Step 6: Final answer
    x = 118,884.38

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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.