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Finding the Fourth Proportional to 169,304.36, 253,764.30 and 79,253.48

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Solution

The fourth proportional to 169,304.36, 253,764.30 and 79,253.48 is: 118,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,304.36 : 253,764.30 = 79,253.48 : x
  2. Step 2: Convert to fraction form
    169,304.36/253,764.30 = 79,253.48/x
  3. Step 3: Cross multiply
    169,304.36x = 253,764.30 × 79,253.48
  4. Step 4: Simplify right side
    169,304.36x = 20,111,703,874.76
  5. Step 5: Solve for x
    x = 20,111,703,874.76/169,304.36
  6. Step 6: Final answer
    x = 118,790.23

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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.