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Finding the Fourth Proportional to 169,380.26, 253,848.92 and 69,423.42

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Solution

The fourth proportional to 169,380.26, 253,848.92 and 69,423.42 is: 104,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,380.26 : 253,848.92 = 69,423.42 : x
  2. Step 2: Convert to fraction form
    169,380.26/253,848.92 = 69,423.42/x
  3. Step 3: Cross multiply
    169,380.26x = 253,848.92 × 69,423.42
  4. Step 4: Simplify right side
    169,380.26x = 17,623,059,842.59
  5. Step 5: Solve for x
    x = 17,623,059,842.59/169,380.26
  6. Step 6: Final answer
    x = 104,044.36

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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.