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Finding the Fourth Proportional to 79,509.58, 119,269.89 and 26,901.28

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Solution

The fourth proportional to 79,509.58, 119,269.89 and 26,901.28 is: 40,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,509.58 : 119,269.89 = 26,901.28 : x
  2. Step 2: Convert to fraction form
    79,509.58/119,269.89 = 26,901.28/x
  3. Step 3: Cross multiply
    79,509.58x = 119,269.89 × 26,901.28
  4. Step 4: Simplify right side
    79,509.58x = 3,208,512,706.46
  5. Step 5: Solve for x
    x = 3,208,512,706.46/79,509.58
  6. Step 6: Final answer
    x = 40,353.79

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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.